Logic Puzzles

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You go to the doctor because you’re ill and he prescribes you with 3 pills and tells you to take them every half hour. How long do the pills last you?
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A man enters an expensive restraunt and orders a meal. When the waiter brings him his meal the man takes out a slip of paper and writes down 102004180, then leaves. The cashier hands the slip of paper to the cashier who understood it immediately. What did the slip of paper say?
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There are three guards and three prisoners who need to cross a river. Their boat only holds two people at a time, and the number of prisoners must NEVER be allowed to outnumber the number of guards on either side of the river; otherwise, the prisoners will overpower the guards and, well, the story will come to an abrupt end. List each of the trips that need to be made and who is in the boat, and who is on each of the riverbanks during each trip. How many trips it will take to safely transport all of the guards and prisoners across the river?
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Angry and Hungry are two words ending in ‘gry” There are three words, (Using popular terminology) in the English Language, that end in “GRY”. . What is the third word? The word is something that everyone uses every day. If you have listened carefully, I have already told you what it is.
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