The belief that people do not use 100 % of their brain is a mere myth. Using 100% of your brain is not exhibited in telekinesis or telepathy. It is exhibited in the daily working of your brain. See link below.
Very carefully...
No you don't use your whole brain. Only part of your brain is ever used.
about 10%
You already use 100% of your brain. It is a myth that we don't. See related question, "Why can't people use 100% of their brains ?" Also related link.
100% all humans do.
Being alive would be sufficient to use 100% of your brain, however you don't nor would you want to use 90% of your brain at once.
100%. Its a myth that we only use 10%. If we only used 10% we would be brain dead.
You always use 100% of your mind (brain). There is an old wives' tale that says we only use 10% but that isn't true.
Probably 100 percent, because if you become a Buddha you achieved maximum level of consciousness
No, people use 100% of their brains. It is a common myth that we only use 10% of our brains.
We use a 100% all the time no matter what even when sleeping.
100% everyone uses. You use it 100% everyday. Eating, dreaming, walking, talking, using electronics etc.