By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

A man escapes from jail using help from his girlfriend. The investigators suspect four girls of being the man's girlfriend.

Out of those four girls, one is his girlfriend who is lying. Two of the girls are completely innocent and are speaking the truth. One of the girls is the man's sister who is helping the girlfriend lie. Following are the statements from all four of them:

Ariana: "Myrna is his girlfriend."
Jane: "Angelina is lying."
Angelina: "Ariana is lying."
Myrna: "Jane is not his sister."

Can you find out who is the man's sister among them?

What do you think with the below Picture ?

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Tell me the Hindi name of a Vegetable which if we remove 1st word will become a precious Stone and by removing the last word it will become a sweet eatable.