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

What has 13 hearts but no other organs?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

One day, I thought of ways that can be used for creating a palindrome. So I decided that I will turn into a larger number by adding the reversed digits to the original number and keep doing it till I finally obtained a palindrome.

I am not sure if this process will always result in a palindrome eventually but I was able to produce a four-digit palindrome. Can you guess my starting number?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

I don't get anymore wetter, no matter how much rain falls on me.

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?

Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?

What is the end of everything?