When 99 is considered higher than 100?

Replace the question mark with the correct number.

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

What kind of band never plays music?

Which is faster, Heat or Cold ? Explain.

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

Suppose we lay down two cups in front of you. One of the cups is filled with tea and the other one with coffee. Now we ask you to take a spoonful of tea and mix it with the coffee. At this moment, the coffee cup has a mixture of tea and coffee. You have to take that mixture (spoonful) and add it back to the tea.

Can you now tell if the cup of coffee has more tea or the cup of tea has more coffee?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

John has eleven friends. He has a bowl containing eleven apples. Now He wants to divide the eleven apples among his friends, in such a way that an apple should remain in his bowl.
How can He do it?

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?