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?

If,
9 * 8 * 7 = 65
8 * 7 * 6 = 50
7 * 6 * 5 = 37

Find
6 * 5 * 4 = ?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?

Remove two matchsticks to make the below equation correct.

I have Rs.50 and I spend it in the way as below.

Solve the mathematical equation in the picture below.

Take one out and scratch my head, I am now black but once was red. What am I?

What always comes into a house through the keyhole?