I start at zero and jump by fours, but when I reach twelve, I loop back to four. What am I?
Category: Math · Difficulty: expert
Hint: Consider how numbers can repeat.
Answer
A modulo sixteen
Explanation
Modulo operation creates a cycle; here, 16 is the limit.
This is a expert math riddle — one of the harder riddles here. The answer is A modulo sixteen.
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