Multiple choice general knowledge math & puzzles 8, 27, 64, 100, 125, 216, 343 27 100 125 343 Reveal answer Fill a bubble to check yourself B Correct answer Explanation The series consists of perfect cubes: 2^3=8, 3^3=27, 4^3=64, 5^3=125, 6^3=216, and 7^3=343. 100 is the odd one out because it is a perfect square (10^2) rather than a perfect cube.