The more of this there is, the less you see. What is it?

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

If six children and two dogs were under an umbrella, how come none of them got wet?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

Remove two matchsticks to make the below equation correct.

It belongs to you, but other people use it more than you do. What is it?

Why Wine Glass Stem is so long?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

A family is trapped in a jungle. There is a bridge which can lead them to safety. But at one time, the bridge can only allow two people to pass through. Also, all of them are afraid of the dark and thus, they can't go alone.

Father takes 1 minute to cross, the mother takes 2 minutes, the son takes 4 and the daughter takes 5 minutes. While crossing the time taken will be according to the slower one. How can they all reach the other side in the minimum possible time?