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?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

What is the centre of gravity?

If eleven plus two equals one, what does nine plus five equal?

If we tell you that there is a relation between the numbers and letters in the given figure, can you analyze it and find the missing letter in the last box?

What does below chemistry rebus means?

In the Thar desert, 3 men found a big 24L Jar is full of water. Since there is a shortage of water so they decided to distribute the water among themselves such that they all have equal amounts of it. But they only have a 13L, a 5L and an 11-litre Jar.

How do they do it?

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

What jumps when it walks and sits when it stands?