Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?

I am quite hot but become too cold if you remove the first two letters. What am I?

Which city is three-fifths chick two third cat and 50% goat?

You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

You stand in front of two doors. A guard stands next to each door. You know the following things: one path leads to paradise, the other leads to death. You cannot distinguish between the two doors. You also know that one of the two guards always tells the truth and the other always lies. You have permission to ask one guard one question to discover which door leads to paradise. What one question would you ask to guarantee you enter the door to paradise?

What does below pictogram mean?

How many triangles can you find in this given picture?

John was drowned by he was not wet. How?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Solve this riddle by finding the odd one out from the rest.