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Riddle:

Janie's friends were chipping in to buy her a wedding shower present. At first, 10 friends chipped in, but 2 of them dropped out. Each of the 8 had to chip in another dollar to bring the amount back up. How much money did they plan to collect?

Answer:

$40 (10 at $4, or 8 at $5).

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Riddle:

Combine plus signs and five 2's to get 28. Combine plus signs and eight 8's to get 1,000.

Answer:

22+2+2+2=28; 888+88+8+8+8=1,000

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Riddle:

A hundred stones are placed, in a straight line, a yard distant from each other. How many yards must a person walk, who undertakes to pick them up, and place them in a basket stationed one yard from the first stone?

Answer:

In solving this question it is clear that to pick up the first stone and put it into the basket, the person must walk two yards, one in going for the stone and another in returning with it; that for the second stone he must walk four yards, and so on increasing by two as far as the hundredth, when he must walk two hundred yards, so that the sum total will be the product of 202 multiplied by 50, or 10,100 yards. If any one does not see why we multiply 202 by 50 in getting the answer, we refer him to his arithmetic.

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Riddle:

There is a creature which could double its size every day. So, if the creature is put in a tank then it will fill the tank in 10 days.

How many days would it take for the creature to fill 1/2 and 1/4 of the tank?

Answer:

9 days to fill 1/2 and 8 days to fill 1/4 of the tank.  If the creature fills the tank in 10 days and it doubles every day, on the ninth day it would fill 1/2 the tank. Thus on the 8th day it will fill 1/4 of tank.

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Riddle:

Tara has $29.00 dollars. She bought 4 coloring books that cost $3.00 each, 4 boxes of crayola crayons that cost $2.00 each. She spend the rest of her money on markers.

How much money did she spend on markers

Answer:

$9.00 on markers

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Riddle:

A nonstop train leaves Moscow for Leningrad at 60 mph. Another nonstop train leaves Leningrad for Moscow at 40 mph. How far apart are the trains 1 hour before they pass each other?

Answer:

100 miles (60+40)

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Riddle:

I am a place, in a state. I am an answer to a math problem. The math problem is: To get a cube, you multiply something by 6. What do you multiply by?

Answer:

You Times Square!

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Riddle:

This number added to it's square, and the digits of that summation added together, bring it back to itself. What is it?

Answer:

3. 3 squared is 9. 3+9=12. Take the two digits of the summation and add them; 1+2=3. In short; 3-9-12-3. This can also work with the number 0 and 9.

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Riddle:

A man bumps into his mathematician friend on the street that he hasn't seen in 5 years. The man asks the mathematician how old his children are. The mathematician, who always replies in riddles said, "I now have three children. The sum of their ages is equal to the number of windows on the building in front of you and the product of their ages equals 36." The friend then says "I need one more piece of information." The mathematician then replies "My youngest child has blue eyes." What are the ages of the mathematicians three children?

Answer:

They are 6, 6, and 1.

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Riddle:

One fourth of the population of a newly discovered planet have 4 legs. The rest have two legs. There are 60 legs total. How big is the population of the newly discovered planet?

Answer:

24.

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