Easy simple riddles

A blind man walks into a hardware store to buy a hammer. There are hammers hanging behind the front desk, but obviously the blind man isn't able to see them. And yet a few minutes later, he happily walks out of the store, having just purchased a new hammer. How did he do it?

I am a seed with three letters in my name. Take away the last two and I still sound the same. What am I?

Lucky Sona fell off a 100 steps staircase without getting hurt! How?

Three lives have I. Gentle enough to soothe the skin, Light enough to caress the sky, Hard enough to crack rocks.

It can be cracked, it can be made, It can be told, it can be played. What is it?

The horse jumps over the king. Strangely there is absolutely no scratch on him. Can you explain, how is it possible?

What is the largest number you can write with just 3 digits?

I have all the knowledge you have. But I am small as your fist that your hands can hold me. Who am I?

There are several chickens and rabbits in a cage (with no other types of animals). There are 72 heads and 200 feet inside the cage. How many chickens are there, and how many rabbits?

I have four legs. I live in Africa. I am big and grey. I live in the river. What am I?