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

What is black when you buy it, red when you use it, and gray when you throw it away?

Our product and our sum always give the same answer. Who are we?

Find the smallest sentence with all the English alphabet.

John's five friends Rachel, Jacob, Phoebe, Joey and Chandler live on the same road.

Rachel lives in the house: A, Jacob lives in the house: B, Phoebe lives in the house: C, Joey lives in the house:D, Chandler lives in the house: E

Mathematically
B*C*D = 1260
B + C + D = 2E
2A = E

The road numbers run from 2 to 222.

Can you tell me the house number of each of John's friends?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

Wednesday, Steve and Pam go to a restaurant to eat lunch. After eating lunch, they pay the bill. But Steve and Pam do not pay the bill. So…who does?