When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

There is something which is always coming but never arrives?

You have 1023 apples and 10 bags. You have to distribute these apples in these 10 bags in any way you choose. But when I ask for a certain number of apples you have to give them in terms of bags without transferring the apples from other bags. How do you distribute the apples?

Buy me, smell me or deliver me, I do not change.

Who am I?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

What does below chemistry rebus means?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

What has one eye, but can’t see?

You are given 2 eggs.
You have access to a 100-storey building.
Eggs can be very hard or very fragile means it may break if dropped from the first floor or may not even break if dropped from 100th floor, Both eggs are identical.
You need to figure out the highest floor of a 100-storey building an egg can be dropped without breaking.
Now the question is how many drops you need to make. You are allowed to break 2 eggs in the process