Rearrange the letters in "new door" to make one word.

What breaks yet never falls, and what falls yet never breaks?

What four weights can be used to balance from 1 to 30 pounds?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

By using all numbers, i.e. 123456789 and subtraction/addition, operators number 100 can be formed in many ways.
Example: 98 + 7 + 6 - 5 - 4 - 3 + 2 - 1 = 100

But if we add a condition use of the number 32 is a must. Then there are limited solutions.
One of such solution is: 9 - 8 + 76 + 54 - 32 + 1 = 100

Can you tell me any other solution?

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

Can you find the missing piece of the Porsche?

What kind of band never plays music?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

What does the below rebus puzzle mean?