I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

Next Number in the Series,

5, 16, 49, 104, ?

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

A man dies of old age on his 25 birthday. How is this possible?

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

You know three triplets: Frank John and Wayne (need to return your money). Frank always tells the truth while John and Wayne always lie. You meet one of them on the road and can ask him a three-word question.
Which question, will you ask?

A Monkey, a squirrel, and an Eagle are racing to the top of the mango tree. Assuming all these animals are in perfect shape, Which animal will reach to Banana first?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?