*1k views**112 ratings**6 saves*

**Question: **If you have an 11 minute and 13 minute hourglass, how can you accurately time 15 minutes?

*73.9k views**76 ratings**2 saves*

**Question: **There are two ropes that both take exactly 1 hour to burn from end to end. You are unable to cut the rope. How can you burn the two ropes in a total of 45 minutes?

*26.8k views**52 ratings**2 saves*

**Question: **A shrimping boat is at the docks with a lifeboat hanging off the side 5 meters above the water. If the tides rise at a rate of 1.5 meters per hour, how long would it take for the water to reach the lifeboat.

*97.3k views**106 ratings**2 saves*

**Question: **How many people do you need to have the odds be in favor (at least 50% chance) of two people having the same birthday?

*1k views**165 ratings**6 saves*

**Question: **Suppose you're on a game show, and you're given the choice of three doors: Behind one door is a sports car; behind all of the others is bicycles. You pick a door, say No. 1, and the host, who knows what's behind the doors, opens another door, say No. 2, revealing a bicycle. He then says to you, "Do you want to pick door No. 3?" Is it to your advantage to switch your choice?

Follow us and get the Riddle of the Day, Joke of the Day, and interesting updates.