Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

What do the following words have in common?

Assess
Banana
Dresser
Grammar
Potato
Revive
Uneven
Voodoo

If 1+9+8=1, what is 2+8+9?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

I’m tall when I’m young, and I’m short when I’m old. What am I?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

Which point will the car reach to go out?

100 prisoners are stuck in the prison in solitary cells. The warden of the prison got bored one day and offered them a challenge. He will put one prisoner per day, selected at random (a prisoner can be selected more than once), into a special room with a light bulb and a switch which controls the bulb. No other prisoners can see or control the light bulb. The prisoner in the special room can either turn on the bulb, turn off the bulb or do nothing. On any day, the prisoners can stop this process and say "Every prisoner has been in the special room at least once". If that happens to be true, all the prisoners will be set free. If it is false, then all the prisoners will be executed. The prisoners are given some time to discuss and figure out a solution. How do they ensure they all go free?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?