True, 2 × 4 = 8, 2 × 9 = 18, 2 × 1 = 2, 2 × 5 = 10, 2 × 6 = 12, False, 2 × 11 = 6, 2 × 8 = 4, 2 × 1 = 8, 2 × 7 = 6, 2 × 9 = 16

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