The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills.

How long do you think you have before you run out of pills?

Count the number of triangles in the picture below:

2, 3, 5, 9, 17, _ What is the next number in the sequence?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

What word is represented by this rebus?

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?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

Can you name four days which start with the letter 'T'?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?