Why Wine Glass Stem is so long?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

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

There are forty elephants and they have forty-fore heads. How can this be possible?

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

I am green and found in the forest and have needles instead of leaves. What am I?
Hint 1: It can be used for Christmas decorations.
Hint 2: I have a strong, scent that is used in air fresheners.

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

A Shopkeeper sold a few chickens to four different customers on a particular day. It was such that each customer purchased half of the remaining chickens and half the chicken more.

Can you find out how many chicken were sold by the shopkeeper on that day if we tell you that the fourth customer bought a single chicken ?

Why 1729 is a magic number? Answer Logically.