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?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

The dirtier I get, the whiter I look. Who am I?

What have one eye but still cannot see?

I cannot talk, but I always reply when spoken to. What am I?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?