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

Find out the missing number in the picture attached:

Replace the question mark with the correct number in the below-given picture?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

81 x 9 = 801. What must you do to make the this equation true?

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?