Faucets and captchas are surely a waste of time, and many captcha sites are also ponzi as they don't pay you at the end of the day, better to find alternate options to earn bitcoins.

It's allmost impossible to mine with your PC. You'll make a negative profit when mining with your CPU or GPU (you'll basically use more power than produce BTC + you'll burn your cpu pretty fast).

If you're serious about mining, you'll need to buy an ASIC, basically an antminer S7, antminer S9 or avalon 6 CAN be profitable IF your power is cheap enough AND your total cost is low enough (the cost to purchase the ASIC? PSU, cables, racks, cooling,...).

Step 1: calculate the purchasing costs

• look for second hand and new asics on this forum, the vendor's site, ...
• custom charges (they add a lot of tax in some countries)
• PSU, cabling, shelfs, fans,... It'll be loud, create a lot of heat and draw an big ammount of power

Step 2: see how much you pay for electricity

Step 3: enter everything here : http://www.coinwarz.com/calculators/bitcoin-mining-calculator . Divide the block reward (12,5 instead of 25), add 10% to the diff, and deduce the price with $50 (the block reward will halve in a couple of weeks, the diff and price adjustments are just to cover your bases, so you have less chances of burning yourself)

Step 4: see how long it'll take to just pay back your investment (if ever) and conclude it's not worth it

You might want to look into altcoin mining... Some of them can be mined with a decent GPU and can be traded for BTC on an exchange

I would suggest to wait for a good ICO coin for now its not good to invest on any altcoin with all the hacking and crappy launch that has been happening right now, bitcoin is always open and litecoin too.

try this one a freelancer site that pays bitcoin xbtfreelancer.com