There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

Before Mount Everest was discovered, what was the highest mountain in the world?

Can you place three balls such that the equation shown in the picture holds true?

Krish is 45 years old and his mother Crishtina is 73 years old.

Can you find out how many years ago, his mother was three times his age?

Can you tell a 3D object that has just two surfaces?

What do you get if you add 2 to 100 four times?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?