A casino manager wished to check the bias on the roulette wheel, so he asked six of his croupiers to report back to him at the end of the week with the number on the wheel which had been most successful.
The wheel consisted of 36 numbers 1 to 36 and there was only one wheel.
The croupiers were named A - F and each had a different answer:
A said, "It was even."
B said, "It was odd."
C said, "It was prime."
D said, "It was a square (square number 1, 4, 9... etc)"
E said, "It had at least one digit 2 in it."
F said, "It was a single digit."
However two of the croupiers were lying. What is the number?
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A casino manager wished to check the bias on the roulette wheel, so he asked six of his croupiers to report back to him at the end of the week with the number on the wheel which had been most successful.
The wheel consisted of 36 numbers 1 to 36 and there was only one wheel.
The croupiers were named A - F and each had a different answer:
A said, "It was even."
B said, "It was odd."
C said, "It was prime."
D said, "It was a square (square number 1, 4, 9... etc)"
E said, "It had at least one digit 2 in it."
F said, "It was a single digit."
However two of the croupiers were lying. What is the number?
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