What has to be broken before you can use it?

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

Find the next number in the series below

21 32 54 87 131 ?

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

There was a man he lives in a hotel each morning he presses the first floor button each evening if there is a person in the elevator he asks him to press the 10 floor button if there is no one in the elevator he takes the stairs why.

Usually, a boxing match consists of twelve rounds. In a particular friendly match between two heavyweights, the match was finished in the ninth round itself as one of the boxers knocked out the other one.

But, in that fight, no man threw even a single punch.

How can this be possible?

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?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

How many triangles can you count in the figure given?