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

What is the last thing you take off before bed?

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?

A sea diver is a real show-off. He showed everyone that he can hold his breath underwater for 15 minutes.

I went to the diver and told him that I can be underwater for double the time i.e 30 minutes.
He responded that he will give me 100$ if I would be able to do it. I won 100$.

What did I do?

I am sure no one can have two things for dinner. what are they?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

I can be cracked, made, told, and played. What am I?

What has lots of eyes, but can’t see?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

Name a key which is hardest to turn.