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

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

Find the Goldfish below the given Image.

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

How can you leave a room with two legs and return with six legs?

Why did Navjot Singh Sidhu put the new January calendar in the freezer

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

You have two bottles of pills marked with labels A and B. The pills are identical. The doctor has asked you to take one A pill and one B pill daily. You cant take more or less than that.

While taking out the pills one day, you took out one pill from A and by mistake took out two from B. You have no idea which pill is which now.

You cant throw away the expensive pills. What will you do now?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?