How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

A man is shown a portrait painting. He looks closely, then tells, “Brothers and sisters have I none, but that man’s father is my father’s son!” Who is the man in the portrait?

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

What word is pronounced the same if you take away four of its five letters?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

What four weights can be used to balance from 1 to 30 pounds?

Find the hidden tiger in the given optical illusion ?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

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?

The centre of the third figure is empty. What digit should fit inside?