Riddles of If you don’t keep me, I’ll break. What am I?

Who makes it, has no need of it.
Who buys it, has no use for it.
Who uses it can neither see nor feel it.
What is it?

Answer

A coffin.

Answer

“Oh Nuts!”

I cannot hear or even see, but sense light and sounds there may be. Sometimes I end up on the hook, or even deep into a book.
What am I?

Answer

A worm.

What is brown and sticky?

Answer

A stick!.

It is as big as an elephant and weighs nothing.

Answer

His shadow.

Four members of a band are walking to a night concert. They decide to take a shortcut, but must cross a bridge. Luckily they have one flashlight. Because of the varying size of their instruments, it takes each member a different amount of time to cross the bridge - it takes the first person one minute, the second person two minutes, the third person five minutes and the fourth person ten minutes. They must cross the bridge in pairs, traveling at the slower speed so if the one minute person went with the ten minute person, it would take a total of ten minutes. Since there is only one flashlight, one person must come back across the bridge, then another pair can cross. They only have 17 minutes to cross the bridge and still get to the concert on time. What order should they cross to get everyone across and get to the concert?

Answer

First, the one minute person and the two minute person must cross the bridge, for a total of two minutes. Then the one minute person should come back with flashlight - total of three minutes. The five minute person and the ten minute person cross together next, making the total thirteen minutes. Now the two minute person goes back and (total now fifteen minutes) and gets the one minute person and they cross together bringing the total to seventeen minutes.

What body part is pronounced as one letter,but written with three,only two different letters are used?

Answer

EYE

I was carried into a dark room, and set on fire. I wept, and then my head was cut off.
What am I?

Answer

Candle.

What is in the middle of the sea?

Answer

The letter 'e'.

A is B's sister. C is B's mother. D is C's father. E is D's mother.
Then how is A related to D?

Answer

A is the granddaughter of D, because
A is the sister of B and B is the daughter of C.
So, A is the daughter of C. Also, D is the father of C.