In Greek mythology, the Sphinx sat outside of Thebes and asked this riddle of all travellers who passed by. If the traveller failed to solve the riddle, then the Sphinx killed him/her. And if the traveller answered the riddle correctly, then the Sphinx would destroy herself. The riddle:

What goes on four legs in the morning, on two legs at noon, and on three legs in the evening?

Oedipus solved the riddle, and the Sphinx destroyed herself.

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?

Why is the Hole below a Lock?

Why are televisions attracted to people?

Can you find out which options fits best with the missing column?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?