which travels faster hot or cold riddle
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which travels faster hot or cold riddle
which travels faster hot or cold
which runs faster hot or cold
which is faster hot or cold
what travels faster heat or cold
which moves faster heat or cold
does hot or cold air move faster
which travels faster hot or cold riddle, which travels faster hot or cold, which runs faster hot or cold, which is faster hot or cold, what travels faster heat or cold, which moves faster heat or cold, does hot or cold air move faster