Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

Can you make four (4) nines (9) equal 100?

10 people came into a hotel with 9 rooms and each guest wanted his own room. The bellboy solved this problem.
He asked the tenth guest to wait for a little with the first guest in room number 1. So in the first room, there were two people. The bellboy took the third guest to room number 2, the fourth to number 3, ..., and the ninth guest to room number 8. Then he returned to room number 1 and took the tenth guest to room number 9, still vacant.
How can everybody have his own room?

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

O T T F F S S ?

You know three triplets: Frank John and Wayne (need to return your money). Frank always tells the truth while John and Wayne always lie. You meet one of them on the road and can ask him a three-word question.
Which question, will you ask?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

With the help clues provided in the image, can you find the 5 digit key?

What number do you get when you multiply all of the numbers on a telephone's number pad?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?