Clean riddles

What is it that you throw away the outer side, then cook the insides and then throw away the insides – what is the name of the item?

What can you lose that will cause other people to lose theirs too?

One company had two factories, in different parts of the country, that were making the same style of shoes. In both factories, workers were stealing shoes. How, without using any security, could that company stop the stealing?

Teddy bears are never hungry because they are always what?

If you see a bird sitting on a twig, how could you get the twig without disturbing the bird?

You have a sock drawer. It has 4 black socks, 8 brown socks, 2 white socks and 8 tan socks. You need to pull out a matching pair of socks in the dark. There is no light and you couldn't see the socks. How many socks you should pull out in the dark to get one matching pair of socks?

Two sisters we are, one is dark and one is fair, In twin towers dwelling we're quite the pair, One from land and one from sea, Tell us truly, who are we?

What gets shorter when you close your arm?

What is the similarity between your eyes and your school?

For thousands of years, Seen only in tale. The wind as a sail, For one thunderous gale. Shiny stores rich in lore, The burning temper, like Earth's core. What am I?