What is yours, but other people use it more than you do?

What number do you get when you multiply all the numbers on a phone keypad?

What can run but never walks, has a mouth but never eats, and has a bank but no money?

What is the next letter in the pattern: J, F, M, A, M, J, J, …?

I am small, brown, and squirrels love to hide me. What am I?

What has many keys but can't open a single lock?

What has a thumb and four fingers but is not alive?