Replace the question mark with the correct number in the below-given picture?

Solve the counting riddle by identifying the number of triangles in the given picture.

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 ()

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

ENEMY = 2 * LINK
LINK + 2 = HELL

Then what will be TAXI + HELL? Select from the options below:
a) ROTTEN
b) DANGER
c) HEAVEN
4) MORTAL

Can you count the number of squares in the given picture?

You can hear me, but you can't touch or see me.

What am I?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

How can you tell a raw egg from a hard-boiled egg?

Look at the picture and find out which square is not linked with any of the other squares.