I doubt that Google Adsense will do that , Google never spoke about bitcoin and never showed the intention of adding it in the future and chances are very low , I mean they didn't even add PayPal which is considered probably the most used payment method so I doubt they will add BTC or any other decentralized crypto currency.

As you might already know , KeepKey emails has been hacked on the christmas day.
Hardware wallet manufacturer KeepKey is offering 30 Bitcoins ($30,400) as a reward for the capture of a hacker who gained access to emails and customer information on Christmas Day.

If you are up to the job , you can read more details on cointelegraph or contact them.

Having all or most of the bitcoins in one or a few hands is very unlikely , I mean almost everyone at the moment is aiming to hodl for long term to become a millionaire in the future , without forgetting the fact that Its being currently used in both gambling industry and the Darknet .
With every increase in the bitcoin price , the chances that this happening are getting low as whoever is planning to get his hands in almost everything should be rich as hell.

I quoted it for you. you can't post pictures because you are a newbie , you should be at least junior member (30 activity) in order to post images.

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EDIT : you won't be able to post it due to the huge size of the picture. I suggest writing what you wrote in the image directly in the OP .

With no doubt , the number of users of brainwallet are less (much less) then the users of exchanges (who stores their coins there) and online wallets but here is the thing , If I learned anything from being with the bitcoin community in the last two years , is that bitcoiners never learn the lesson unless they lose their coins.
I will give you an example , since the hack of Mt.gox and people are advising each other to not store their coins in an exchange but how many of them are actually doing it? not much... because until now , exchanges are still being hacked and we see people crying about how they lost bitcoins.
Overall , you can put reminders and warnings all over the place but If people don't lose their coins , they won't learn the lesson.

Services usually don't give you much discounts when It comes to buying giftcards using bitcoin , I really suggest you make an [WTB] thread on the digital goods section or find sellers that are selling already , you have more chances to find discounts then using any service.

There is Bitcoin balance which should do the job you are asking for : https://play.google.com/store/apps/details?id=com.alarmred.bitcoinbalance&hl=en
Another solution would be to use CoinNotice but Its used to send SMS and Its not free either. Blockchain.info also offers watch-only addresses and should send notification once there are movements on it.

I'm wondering how Its going to be as well , I mean bitcoin could be decimal , I'm not sure even sure why there are going to add it as something else specific to bitcoin only. If its good , hopefully they add it to both their Word and Access as well.

Microsoft is working on BitCoin format support in Excel. When this feature becomes available, users can use Excel to track, calculate and analyze Bitcoin data using native Bitcoin number formatting options. This new feature will be first rolled out to Excel 2016 for Windows, Excel Online, Excel Mobile for Windows and Excel Mobile for Android.

This feature is expected to be available in the first half of 2017, both cointelegraph and MSPowerUser talked about this.

https://mspoweruser.com/bitcoin-currency-format-support-coming-soon-microsoft-excel-desktop-mobile/

If it continue to go up and increase fast then Its only going to be a matter of time until we see a crash because people will probably be selling everything they have once It reach 1500$ or 2000$ so preferably,It increase with stability because the faster It goes up , the faster It will go down after it.

5 USD before reaching the ultimate goal 1000$ and It may keep increasing , If you really want to protect yourself at this point then you should definitely start withdrawing as soon as you finish your trade.

I can't tell you exactly , I proceed until I saw that the fees are high with Simplex or whatever the name is so I left them but I heard some good reviews , I highly suggest asking before you continue with a fake address. As for virwox , I never had any issues with it so I can't tell either.

I believe that Its all about the marketing and how good your faucet is (whether we are speaking about the coding part or the design) and how you advertise it on the forums. There are a few advertising networks that pays in BTC : https://bitcointalk.org/index.php?topic=1108616.0 and yes there are risks involved while using google AdSense indeed.

There are a few options on the market at the moment but the fees are high sometimes :

Virwox should be available worldwide and they accept most of the payment methods that others dont such as debit cards , paypal , skrill , Ukash , paysafecard and much more. There is also limits on how much you could buy but those are increased by x time from your first PayPal/Skrill deposit.
Buy.bitcoin.com It's a new service that bitcoin.com is offering and its an easy way to buy using your credit card.
Finally , there is blockchain.info who launched the ability to buy BTC directly from their wallet but I 'm not sure where Its available and where Its not the moment , I'm from Africa and I know its not.

Once again , the fees are high compared to other services but If you don't care then those are definitely legit services.

I didn't use them honestly , I only asked about them because I saw an ad on blockchain.info and usually BC don't advertise scams and Its available in Bitcoinist , and other press websites so I wouldn't be worried personally.
There are more known and legit services that accepts debit cards though , I'm not sure why you wanted to use Bitnovo.

A few months back , I asked about this service , It looks like Its legit indeed but they need some verifications first. As the owner mentioned :

"We accept most of the countries for the purchases. The card must be full 3Ds for the purchases. Full KYC verification is passed on the first purchase."

See his full answer : https://bitcointalk.org/index.php?topic=1681890.msg16897541#msg16897541
If your card is accepted then yes they should logically convert the balance from USD to EUR without issues.

The gross domestic product (GDP) is one of the primary indicators used to gauge the health of a country's economy. It represents the total dollar value of all goods and services produced over a specific time period; you can think of it as the size of the economy. - from investopedia

Unless there is a law that prevents us from using bitcoin ,then It should be considered as legal already and for the moment I don't see how Its helping to increase GDP of a coutry.

As far as I know (from 2.5.4 and above ), you first start with 20 addresses in your wallet , once you use one address to receive funds , a new address is generated for your seed and this means that you will keep a number of 20 unused address all the time and there shouldn't be any limits. See this detailed answer : http://bitcoin.stackexchange.com/questions/48067/how-many-addresses-can-an-electrum-seed-generate

I can do this for you as long as the download has nothing to do with gambling or the adults industry and the app must be clean or known , I don't have the intention to download anything unknown (please provide a virustotal scan with the P.M) . As for the payment , feel free to send it to the user that asks for doing the job next .

If you compare it to https://selly.gg/ or https://rocketr.net/ and besides the fact that both services are free to use , what's the main difference between them and what you are providing ?