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?

How many times do a clock's hands overlap in a day ?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

Can you find out the total number of triangles in the given figure?

Can you find the hidden animal in the picture below?

Why is the Hole below a Lock?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

What does the below mathematical rebus mean?

I am sure no one can have two things for dinner. what are they?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?