A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

When can we add 2 to 11 and get 1 as the correct answer?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

What number do you get when you multiply all of the numbers on a telephone's number pad?

In the image below, can you find the value of an angle(y)

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

You have to fill the below given grid in a manner that every row and column contains the digits 1 to 6. Also, make sure that the squares that are connected with each other must contains the same digit.

how come the second man dies?