How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

What's the only room from which no one can enter or leave

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

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

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Two boys wish to cross a river. The only way to get to the other side is by boat, but that boat can only take one boy at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both boys manage to cross using the boat.

How?

Kareena is older than Katrina and younger than Karishma. Isabelle is younger than Bipasha and Karishma. Bipasha is older than Karishma. If Kareena and Isabelle are the same age, who's the youngest?