What always comes into a house through the keyhole?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

It is always ahead of me yet I can never see it. What is it?

Can you count the number of triangles in the given picture?

This is a famous paradox which has caused a great deal of argument and disbelief from many who cannot accept the correct answer. Four balls are placed in a hat. One is white, one is blue and the other two are red. The bag is shaken and someone draws two balls from the hat. He looks at the two balls and announces that at least one of them is red. What are the chances that the other ball he has drawn out is also red?

How many times can you subtract the number 5 from 25?

Solve the mathematical equation in the picture below.

A B C D E F G H

These are the letters given to you. Now you have to find out the letter that comes two to the right of the letter which is immediately to the left of the letter that comes three to the right of the letter that comes midway between the letter two to the left of the letter C and the letter immediately to the right of the letter F.

You are confined in a room and given two metal rods. Out of these two rods, one is magnet and the other is the iron rod. They look starkly similar. You don't have any other metal object in the room.

How will you decide which one of those is magnet?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?