Riddle: A certain number has three digits. The sum of the three digits equals 36 times this number. Seven times the left digit plus 9 is equal to 5 times the sum of the two other digits. 8 times the second digit minus 9 is equal to the sum of the first and third. What is the number?
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Riddle: A clock chimes 5 times in 4 seconds. How many times will it chime in 10 seconds?
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Rating: 100%
Rating: 100%
Rating: 100%
Rating: 100%