Which of the following numbers is a perfect square?

B. 64
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In a family, there are four members: A, B, C, and D. A is the father of B and C. B is the daughter of A and D is the son of C. What is the relationship of D to A?

A. GRANDSON

What is the value of 7! (7 factorial)?

A. 5040
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What is the least common multiple (LCM) of 12 and 15?

B. 60
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If '?' represents addition, '?' represents subtraction, and '?' represents multiplication, what is the result of 5 ? 3 ? 2 ? 4?

B. 9