I am sure no one can have two things for dinner. what are they?

What has 88 keys?

In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

I have Rs.50 and I spend it in the way as below.

In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

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

What number should come in place of the question mark below?

If your uncle’s sister is not your aunt, what relation is she to you?

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?