Recent Riddles & Brain Teasers

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

John: "Hi Teacher, What is your favourite movie ?".
Chemistry Teacher: "Indium Cerium Platinum Iodine Oxygen Nitrogen".
Ten seconds later... John replied I got it.

Do you?

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?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different. How do you measure 45 minutes?

Find the next number in the following series:
6, 14, 26, 98, __?

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?

Solve the rebus riddle in the picture below.

What does this say?

XLR8