What question can you never answer yes to?

I shave every day, but my beard stays the same. What am I?

What is the next number in this matchsticks series riddle?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?

Which flower has two lips?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

There was a kingdom in which the king had no heir to take over his thrown. Even the queen was dead and he himself was on the verge of dying. He thought about it and then summoned all of the teenagers. He gave one seed each to all of them and asked them to grow the plant. He announced that the one with the most beautiful plant will become the king/queen of the empire after the death of the king.

After a month, all of them were called. The king looked at all of the plants but announced the girl with an empty pot as the queen of the empire. Why?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

Replace the question mark with the number below given a simple math problem.