How can you drop a raw egg from a height onto a concrete floor without cracking it?

Our product and our sum always give the same answer. Who are we?

What can go through glass without breaking it?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

What word is represented by this rebus?

What do you get if you add 2 to 100 four times?

What does the below rebus riddle means?

Take one out and scratch my head, I am now black but once was red. What am I?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

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.