I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Tell me the Hindi name of a Vegetable which if we remove 1st word will become a precious Stone and by removing the last word it will become a sweet eatable.

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

How many sides does a circle have?

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

What is the coolest letter in the alphabet?

What is harder to catch the faster you run?