Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

What has one eye, but can’t see?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue and grey, I’m read from both ends, and the same either way. What am I?

Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation. Conditions: Each must be used exactly once and no other numbers or symbols can be used.

A sundial has the fewest moving parts of any timepiece. Which has the most?

Can you name four days which start with the letter 'T'?

Manish and Manoj play 5 games of chess.
Both Manish and Manoj win the exact same number of games. There is no tie at all.

How?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

Check out the number list below and find what number comes next in the sequence.

111 , 113 , 117 , 119 , 123 , 137 , ?