I can be counted but never seen, I grow larger as you include more, yet I diminish with absence. What am I?
Category: Math · Difficulty: easy
Hint: Think about things you can group together.
Answer
A group of items
Explanation
A group of items can increase in number when more are added, while it decreases when items are removed.
This is an easy math riddle — a good one for children and beginners. The answer is A group of items.
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