Think you can survive a Siberian explosion? Prove it in this Tunguska trivia run

June 1908. A blast 1,000 times stronger than Hiroshima flattens 80 million trees across Siberia. No crater, just a mystery. Do you know what hit the Podkamennaya Tunguska, or are you just guessing? The clock is ticking. Prove you can solve the century's biggest blast.