I have teeth but i don't bite. Who Am I ?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

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

It is a 5 letter word if you take away first letter it is something you get from sun, if you remove second letter you will get something to eat, if you remove third letter you get a word you use in pointing at and if you remove the fourth letter you get something to drink. What is it?

Kohli and Dhoni decided to have a paintball match.
Kohli told Dhoni, "Sir it is not right as you got thrice the paintballs I have".

Dhoni instantly gives Kohli 10 hit paintballs.
Kohli replied, "Sir, I believe you still have twice the paintballs than I have".

Dhoni gives "?" more paintballs to Kohli.
Kohli replied, "Sir it is even now, Let us have a match".

What is "?".

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

How do you go from 98 to 720 using just one letter?

A man wants to cross the pit of fire which is 25 feet in length and he has 2 planks(fire resistant) 19 feet in length. How can he cross the pit of fire alive?

John is looking at Jenifer, but Jenifer is looking at Jacob. John is married, but Jacob is not.

Is a married person looking at an unmarried person ?