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

BASE +
BALL
---------
GAMES
----------

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

I make two people out of one. What am I?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

I am a three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

Can you count the number of quadrilaterals in the picture below?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?