Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

Who always enjoys poor health?

Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3.

(You can use one number only once)

There is an exact a week gap between Christmas and New Year. Hence, It is obvious that the new year that comes right after Christmas comes on the same day of the week.

A Strange thing happened in the Year 1777. Christmas occurs on Wednesday and New Year on Monday. How is that possible?

In a rainy season, one day 3 huge ladies walked under a normal-sized umbrella.
The umbrella is not huge enough to accommodate all 3 ladies yet not a single lady got wet. Why?

What building has the most stories?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

I have branches, but no fruit, trunk or leaves. What am I?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.