How can you make number one disappear by adding something to it?

How many words can a pen with half refill write?

A pet show was happening in my locality. I went down along with my kids. In that show, I noticed that all except two of the entries were cats. All except two were dogs and all except two were Monkeys.

Can you find out how many of each animals were present in that pet show?

It was a dark stormy night and a couple were in a car driving madly to a city. The car broke down and the husband had to go get help from someone who spoke his language. He was afraid to leave his wife alone in the car so he locked the car before leaving. When he came back, the car was in the same state as he had left it but his wife was dead, there was blood on the floor and there was a stranger in the car. What happened?

Next Number in the Series,

5, 16, 49, 104, ?

You are playing a game with your friend Jack. There are digits from 1 to 9. You both will take turn erasing one digit and adding it to your score. The first one to score 15 points will win the game.

Would you want to play first or second?

PS: The sum should be exactly 15.

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

I was born in a small house and I live in it all alone. No windows and no doors have been assigned to my house. The only way I can go out is by breaking through the walls of my house.

Who am I?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?