Riddle - TourismVersión en línea Welcome dear tourists, You all are welcomed to join the best riddle activity ever seen, become a player, and enjoy this trip of guessing.. It is completely free, just take your time and join us. What are you waiting for? Break a leg! por JUAN PABLO RIVAS OROZCO 1 What has many keys, but can't open a single door? Hints 1 The more you take, the more you leave behind. What am I? 2 When you need me, you throw me away. When you're done with me, you take me back. What am I? 3 Before Mount Everest was discovered, what was the highest mountain on Earth? 4 Always in you, sometimes on you. If I sorround you, I can kill you. What am I? 5 You have heard me before, though you hear me again. Then I die until you call me again. What am I?