Very carefully...
We only use about 5 percent of our brain for senses. Research has shown that we do not use 100 percent of our brains. About 10 percent of our brain is not used.
Same as you, 100%.
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.
No, of course not, like humans, animals have a percentage of their brain, no matter how small, that they don't use.
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.