What is the coolest letter in the alphabet?

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?

They are three errirs in this question. Can you find them?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

I went to the bookshop and spent one-half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

Mother's Name is Mrs. SIXTY TWO
Son's Name is FIFTY TWO
Daughter's Name is FORTY TWO
What is Name of Father?

What has 88 keys?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

Prove that twice of ten is the same as twice of eleven.