How do you go from 98 to 720 using just one letter?

I am first found in caves, now prolific online; I am a depiction, a drawing, a symbol, or sign. I will convey whichever mood you could wish; or for that matter, a fist, flask, or fish. What am I?

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

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
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GAMES
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