Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

I always drive my customer away.

Who am I?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

In the following picture, E is going to slide the object down and as per the terrain and the physics, the round object is going to travel all the way till the end. Now, can you analyze who all people will die when it happens?

What came first, the chicken or the egg?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?