Odd One Out

In five cards, the second number is the square of the first. Which card breaks that rule?

odd-v2-005Easy

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Multiply the first number by itself.

Enable JavaScript to check your answer. Hint: Multiply the first number by itself.

Read the answer

D is different: 5 × 5 = 25, not 20. The other pairs show squares.

New puzzles · v2

Find the exact ID shown in a post.

The intended answer