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

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?

If 1+9+8=1, what is 2+8+9?

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

How can you drop a raw egg from a height onto a concrete floor without cracking it?

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

Find the hidden tiger in the given optical illusion ?

10+10 and 11+11 can give you the same answer.

Explain how?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?