The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

Why Aeroplane windows are round?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

Why did the Girl throw the butter out of the window?

It is a nine-letter word.
The exact opposite of the phrase "friendly and outgoing"
It contains the word "over".
It starts will a vowel.

What is it?

As shown in the picture below, we can see a boy hanging on the tree branch to save his life. There are various ways in which he can die like1. A snake hanging toward the right waiting to bite the boy.2. A roaring Lion near the tree.3. Two crocodiles are ready to attack if the boy reaches near water. The tree is chopped to some extent, so can fall as if he moves a lot. Can you give this boy an escape plan?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

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