Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

Find the smallest sentence with all the English alphabet.

What number divided by 4 is the same as that number minus 4?

What is black when you buy it, red when you use it, and gray when you throw it away?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?

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