Find the 8 in the below-given Image.

People put me on the table and cut me but do not eat me. What am I?

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

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

What breaks yet never falls, and what falls yet never breaks?

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.

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

Replace the question mark with the correct number below.

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

I have branches, but no fruit, trunk or leaves. What am I?