1. There's a body lying dead on a bed, and on the floor beside it is a pair of scissors. The scissors were instrumental in his death, yet there's no trace of blood. The body reveals no signs of any cuts or bruises. How could the person have been murdered with the pair of scissors?
2. If we tie a light oxygen tank to a bird so that it can breathe on the moon, would the bird fly faster, slower, or the same speed as it does on earth? (Remember that there is less gravity on the moon.)
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