You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

Make a sentence consisting of three words that have the whole alphabet.

Which flower has two lips?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

Before the start of the car race, John and Jacob have the same amount of fuel in their car. With this fuel, John can drive for 4 hours while Jacob can drive five hours.
After a time they realize that the amount of fuel left in John's car is 1/4th of the fuel in Jacob's.

For how long they are racing?

What word is pronounced the same if you take away four of its five letters?

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?

If you say my name, I will no longer exist. What am I?