A pencil, an eraser, and a notebook together cost $1. A notebook costs more than 2 pencils. 3 pencils cost more than 4 erasers. 3 erasers cost more than a notebook. How much does each cost?
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4400 Days from Today
10 Bags 100 Coins
There are 10 identical bags of coins. Each bag contains 100 coins. In one bag the coins are silver, in the others gold. All the coins are identical. A gold coin weigh 10 grams and a silver coin weigh a gram less.
Given a regular measurement scale, how would you determine in one weighing which bag does not have the gold coins?
Riddle AnswerClock Struck 21
One minute ago, a clock that strikes only the hours just finished striking an hour. If the clock has struck a total of 21 in the last 2.5 hours, what hour did it just finish striking?
Riddle AnswerSame Amount
What number gives the same amount when it is added to 3 as when it is multiplied by 3?
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