What part of your body has no blood supply?

Which metal can melt in your hand?

Where can water boil and freeze at the same time?

What creature can survive in space?

What happens to metal in space without gravity?

Which element explodes on contact with water?

What animal can live without a brain?

What color is pure water really?

Which planet rains diamonds?

What organ can grow back completely in humans?

What happens if you drop a ball of glass into water with high pressure?

What’s the only letter not used in the periodic table?

What’s the actual smell of rain called?

What food is radioactive (naturally)?

What natural phenomenon can “sing” or hum?