Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

How many times do a clock's hands overlap in a day ?

People put me on the table and cut me but do not eat me. What am I?

It is always ahead of me yet I can never see it. What is it?

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

If in a code language, DISTANCE is written as IDTUBECN and DOCUMENT is written as ODDVNTNE, the how will THURSDAY be coded as in the same language?

What does this mean?

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