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?

What is the word or phrase below?
R | E | A | D

Can you Find and name the hidden bird in the picture below ?

John was drowned by he was not wet. How?

Out of three Friends John, Jacob and Jonny one of them is a king, one is a bureaucrat, and one is a Spy.

The king always tells the truth, the bureaucrat always lies, and the Spy can either lie or tell the truth.

John says: Jonny is a bureaucrat
Jacob says: John is a king
Jonny says: I am a Spy

Tell me, Who is the king, who is the bureaucrat, and who is the Spy?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

I’m tall when I’m young, and I’m short when I’m old. What am I?

Can you name four days which start with the letter 'T'?

what does this picture(rebus) riddle means ?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?