Why do people go to bed?

What is more useful when it is broken?

What is the centre of gravity?

If all the below statements are true

1. Gianni was either in Italy or France in 1997.
2. If Gianni did not kill Versace, Hilton must have killed him.
3. If Versace died of suffocation, then either Gianni killed him or Versace committed suicide.
4. If Gianni was in Italy in 1997, then Gianni did not kill Versace.
5. Versace died of suffocation, but he did not kill himself.

Who killed Versace and where was Gianni in 1997?

There are forty elephants and they have forty-fore heads. How can this be possible?

What can you deduce from the following BrainBat?

CRY
LMKI

Can you move 2 matchsticks to form four equal sized squares.

What question can you never answer yes to?

What does this rebus mean?

O
N
C
E
TIME

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?