Why Don't Penguins' Feet Freeze?

• What time is it at the North Pole?

• What''s the chemical formula for a human being?

• Why do boomerangs come back?

• Why do flying fish fly?

• Do the living really outnumber the dead?

• Why does lightning fork?

• Why does the end of a whip crack?

Everyone has at one time or another thought up odd questions like these, questions that are strange, intriguing, maybe even impossible t...