Replace the question mark with the correct number in the below-given picture?

Can you find out the missing number in the grid?

We are a group of eight brothers. We consider the weak, yet we protect the king in every battle. If we move ahead, we never turn back. Who are we?

In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

What can jump higher than a building?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

Using eight eights and addition only, can you make 1000?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

Replace the question mark with the correct number in below Picture: