Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

In a mathematical quiz, you are asked the following question:

Use three 9s in a mathematical expression without dividing or multiplying to form the number one.

Can you answer the question?

What 5-letter word typed in all capital letters can be read the same upside down?

Which is the rope you never skip with?

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.

If we tell you that there is a relation between the numbers and letters in the given figure, can you analyze it and find the missing letter in the last box?

An office is divided into 8 cubicles. How many of the cubicles are painted if only 1/8 of the cubicles are painted?

I travel all around the world but always stay in the corner. What am I?

Count the number of triangles in the below picture?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?