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

I have branches, but no fruit, trunk or leaves. What am I?

Can you name four days which start with the letter 'T'?

Doctor Alex and a bus driver John are both in love with the same woman named Olivia. The bus driver need to go for a long trip of 10 days, Before he left he gave Olivia 10 apples.

There are forty elephants and they have forty-fore heads. How can this be possible?

What do you call a fish without an eye?

What can you serve, but never eat?

What is the coolest letter in the alphabet?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

Do you know who was buried in John's tomb?