Question

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

Answer 1

All you have to do is simply drop the egg on the concrete floor
the floor itself is too strong to be broken(cracked) by an egg

Answer 2

By placing a pillow, on a heap of sand as when the egg is falling down it exerts force the same force is applied by the concrete floor . If it is thrown on a pillow or heap of sand the force exerted by the egg on the floor is decreased by the pillow or sand.So,the force exerted on the floor by the egg is zero.So,the egg doesn't break