Can you name an animal whose killing cannot be performed without spilling your own blood?

Which alphabet is a part of our body?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

Why do you find that most of the buildings are deprived of the 13th floor?

You are a thief and you are being punished for your crime. People have tied your head down on a tree with a rope that has been anchored in the ground. A candle is burning below the rope which is slowly burning it away. Just below your head, a Lion has been left loose and is waiting for you to drop down on the ground so he can have you as his lunch.

You have to survive the scenario. How will you do it?

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

What building has the most stories?

How can you make a TV, a bed, a dog, and a car liquid?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?