Can you count the number of quadrilaterals in the picture below?

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

Prove that twice of ten is the same as twice of eleven.

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

What came first, the chicken or the egg?

John is pretty weird. He likes toffees but hates chocolates. He loves books but never reads. He likes to build his troops in an online game but does not proceed with the war. He likes to go swimming but is afraid of water.

Seeking this behaviour, can you tell whether he likes balloons and parties?

Find the next number in the sequence

5 12 24 36 ?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

On a bus, there is a 26-year-old pregnant lady.
A 30-year-old policeman.
A 52-year-old random woman.
And the 65-year-old driver.

Who is the youngest?