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

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

Which number should replace the question mark?

Find the next number in the series below

21 32 54 87 131 ?

Count the number of triangles in the given picture.

The below mentioned letters have been placed in a order using a logic.

DEAD, BALL, FEAR, SHOP

Can you find the logic?

Which alphabet letter is a question?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the mixture is 20 pounds. After a while, John noticed that some of the liquid evaporated and now the liquid comprises just 50% of the weight.

What is the weight of the chemical mixture now?

Why did the Girl throw the butter out of the window?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?