curious a philosopher inquisitive
There's a lot, but I'd say a bookworm.
loquacious
You would say he is accident-prone
mechanic car-bore-ator
A smarty pants ;) Some possibilities are loquacious, literate, and linguist.
Because they are thinking about a lot of questions. By the way, the question should probably have read "Why does a person have a lot of questions in his/her mind?".
You would call a person who praises himself a lot a narcissist.
a curious person
umm by phone or if the question is meant to be (waht do you call a person with a lot of money) that answer is rich
talkative
contrary
A klutz
A narcoleptic person; a person with narcolepsy.
a medict.
A neat freak!
Modern.
A shopaholic.