You need to arrange three 7 and mathematical symbols to form number 1?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

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?

Can you identify if it's a murder or a suicide ?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

On my way to St. Ives I saw a man with 7 wives. Each wife had 7 sacks. Each sack had 7 cats. Each cat had 7 kittens. Kittens, cats, sacks, wives. How many were going to St. Ives?

If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?