2k views
136 ratings
2 saves
Question: What is bought by the yard by is worn by the foot?
28.8k views
14 ratings
2 saves
Question: I'm measured in temperature and time, but have neither.
What am I?
6k views
454 ratings
5 saves
Question: I build bridges of silver and crowns of gold.Who am I?
30.5k views
47 ratings
2 saves
Question: A rat is placed at the beginning of a maze and must make it to the end. There are four paths at the start that he has an equal chance of taking: path A takes 5 minutes and leads to the end, path B takes 8 minutes and leads to the start, path C takes 3 minutes and leads to the end, and path D takes 2 minutes and leads to the start.
What is the expected amount of time it will take for the rat to finish the maze?
12.9k views
16 ratings
1 saves
Question: The London Racetrack needs to submit its 3 fastest horses to the Kentucky Derby out of 25 horses. However, all of their information was lost and they don't know any of the horse's times. Similarly, they all look identical so they can't remember who's fastest.
They can only race 5 horses at once, so what is the fewest number of races they can conduct to find the 3 fastest horses?
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