Can you make four (4) nines (9) equal 100?

Using Only Five 5's and any mathematical operator make sum as 37

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

In the four images below, can you find the odd one out?

The horse jumps over the king.
Strangely there is absolutely no scratch on him.

Can anyone explain, how is this possible?

Which alphabet is a part of our body?

The Little ant seems to be always confused. Do you know why?

You bought me for dinner but never eat me. What am I?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?