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Logic

1123 riddles

Riddles that derive from deduction and logical thinking.

Is there a number which, when written as a word has same number of letters as its numerical value?
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There is a dead frog in the center of a pond. If it hops one meter at a time and it is three meters from the edge, how many hops does it take to reach the edge.
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One day, a stray dog walked into a forest and got lost. The forest was 5 miles long and 6 miles wide. He finally gets to the middle and keeps on going farther in. Then, after 10 hours, he finally gets out. How much farther in did he have to go after he got to the middle?
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There are nine birds on the branch. You shoot the first and third bird. How many are left?
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On a Saturday, everyone is doing something. The children are playing outside, the dad is getting the mail, the mom is knitting but the dog is starving. The next day, everyone is doing the same thing but the dog is fed. Who fed the dog?
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You are the bus driver. You are steering it and 10 people get on. Then 7 people get off. After that, 35 people get on. Then 25 people get on. Then 30 people get off. Then 100 people get on. 50 people get off. 10 people get on. 25 people get off. Now, what color were the bus driver's eyes?
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First tell me who lives in disguise, who deals in secrets and tells naught but lies.
Next, give me the sound often heard during the search for a hard-to-find word.
Finally, what is always the last thing to mend; the middle of middle, and the end of end?
Now string them together and answer me this: Which creature would you be unwilling to kiss?
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If half of five was two what would a third of ten be?
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Where is the ocean the deepest?
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Four people come to an old bridge in the middle of the night. The bridge is rickety and can only support 2 people at a time. The people have one flashlight, which needs to be held by any group crossing the bridge because of how dark it is.

Each person can cross the bridge at a different rate: one person takes 1 minute, one person takes 2 minutes, one takes 5 minutes, and the one person takes 10 minutes. If two people are crossing the bridge together, it will take both of them the time that it takes the slower person to cross.

Unfortunately, there are only 17 minutes worth of batteries left in the flashlight. How can the four travellers cross the bridge before time runs out?
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