A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

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

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

A 52% bias toss for head using the 51% tail bias coin was done to obtain a fair result.

Can you find how bias is the floor in this case?

You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.

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?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

What number should come in place of the question mark below?

What country can make you shiver?

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?