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?

Count the Triangle in the figure given below:

The answer I give is yes, but what I mean is no. What was the question?

What country can make you shiver?

With the help clues provided in the image, can you find the 5 digit key?

John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the mixture is 20 pounds. After a while, John noticed that some of the liquid evaporated and now the liquid comprises just 50% of the weight.

What is the weight of the chemical mixture now?

Can you count the number of squares in the given picture?

Prove that the below maths equation is true.

8 + 8 = 91

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

What can you deduce from the following BrainBat?

CRY
LMKI