A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?

Three brothers Jacob, John, and James live in Mexico City. The product of the ages of these brothers is 175. Jacob and John are twins. How old is James?

Identify the next two numbers in this series.

101, 112, 131, 415, 161, 718, ???, ???

Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Why is the longest human nose just 11 inches?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

What has no start, end, or centre?

I am white when I am dirty, and black when I am clean. What am I?