What's the only room from which no one can enter or leave

You bought me for dinner but never eat me. What am I?

How is a fly different from a mosquito?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

our enemy challenges you to play Russian Roulette with a 6-cylinder pistol (meaning it has room for 6 bullets). He puts 2 bullets into the gun in consecutive slots, and leaves the next four slots blank. He spins the barrel and hands you the gun. You point the gun at yourself and pull the trigger. It doesn't go off. Your enemy tells you that you need to pull the trigger one more time, and that you can choose to either spin the barrel at random, or not, before pulling the trigger again. Spinning the barrel will position the barrel in a random position.

Assuming you'd like to live, should you spin the barrel or not before pulling the trigger again?

Can you write down eight eights so that they add up to one thousand?

What part of the chicken has the most feathers?

Peter wakes up daily to pick up his cycle and crosses the border between Spain and France daily with a bag on his shoulder. He is investigated daily by the officials but they don't find anything suspicious.

If we tell you that he is smuggling something what would it be?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

Why do we preferably have round manhole covers and not square ones?