Short Riddles and Answers

Question: Swallowing one is fine.
Swallowing two together is fine.
But Swallow them separately and all shall fall.

What are they?

Question: a mans car gets stolen but all the windows are up and the doors are locked there is no holes or breaks in the car how does it get stolen?

Question: I have the same mum as somebody else,the same dad,the same birthday,the same age and the same sisters but we are not twins. What are we?

Question: A thing which is Live ,as we use it Everyday for watching this Beautiful Nature,and has high auto-focusing strength!!! so what is it??

Question: Stars, scores and springs have them. Fingers, and backs have them. Keys, switches and cups have them. Leaders and mothers have them.