Can you count the number of triangles in the picture below?

Why Aeroplane windows are round?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

A spaceship was lost. The detective was given a piece of paper. This was the location of the spaceship! This is what the slip had scribbled on it:
Juice, Umbrella, Potato, Ice, Tomato, Elephant, Rice.

Where is the spaceship?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

You need to remove two matchsticks to make the below equation true. Can you do it ?

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?

A Shopkeeper sold a few chickens to four different customers on a particular day. It was such that each customer purchased half of the remaining chickens and half the chicken more.

Can you find out how many chicken were sold by the shopkeeper on that day if we tell you that the fourth customer bought a single chicken ?

A father's child, a mother's child, yet no one's son.

Who am I?

How far can you walk into the woods?