i want to send 100$ bitcoin and my wallet tell me 20 Sat is good  is this right or must increase it

notice this is Image 

can small block size problem (only 1 MB) destroy bitcoin ?bitcoin will edit it ? or this is normal problem
what happen if all developers make it 2 MB possible?

Which important for you price increase or fee decrease or other factors

i mean it’s better to see price rising up or fee going down

can any one track my IP of wallet or from my address ?? Because i see some wallet can detect my ip so may be them save it
how can police know about bitcoin users?

is there any rules between wallets to have Special bitcoin address ?

and i see many wallet give for 1 user more than 1 address (HD wallet) so after 10 years if number of users increase can two users get same address ?

are Segwit2X son of bitcoin and will be used like bitcoin or both of them difference ??
How can know this is Segwit2X and bitcoin  please with simple newbie here