What is at the end of a rainbow?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

What has one eye, but can’t see?

4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

Out of three Friends John, Jacob and Jonny one of them is a king, one is a bureaucrat, and one is a Spy.

The king always tells the truth, the bureaucrat always lies, and the Spy can either lie or tell the truth.

John says: Jonny is a bureaucrat
Jacob says: John is a king
Jonny says: I am a Spy

Tell me, Who is the king, who is the bureaucrat, and who is the Spy?

What question can you never answer yes to?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?