If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

Which flower has two lips?

You have 10 balls with you. A friend of yours out of nowhere asks you to place those ten balls in five lines such that each of the lines has exactly 4 balls on them. He needs to check your intelligence. Prove him by doing the task.

What can you catch but never throw?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

If eleven plus two equals one, what does nine plus five equal?

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

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

Can you decipher the two rows to find the hidden word?

O_er_t_o_

Complete the missing letters of the given word.