No matter how little or how much you use me, you change me every month. What am I?

How can you make number one disappear by adding something to it?

The more you take me, the more you leave me behind.
Who Am I?

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?

I know there are two methods by using three time the same number with a plus(+) operator , you can make sum as 60.

One of them is 20+20+20.

whats the other way ?

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

How can you leave a room with two legs and return with six legs?

Can you solve this picture maths equation?