Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?

This is a famous paradox which has caused a great deal of argument and disbelief from many who cannot accept the correct answer. Four balls are placed in a hat. One is white, one is blue and the other two are red. The bag is shaken and someone draws two balls from the hat. He looks at the two balls and announces that at least one of them is red. What are the chances that the other ball he has drawn out is also red?

The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets?

Find out the number of circles in the given picture having Illusion

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

I have feet, but no legs. Which animal Am I?

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

Why do we preferably have round manhole covers and not square ones?

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?