Thank you for the opportunity to help you with your question!
Some of the measurements would be different, because two people are measuring different things. For example, the 'length of your hand from wrist to longest finger' will most likely be different for everyone because the lengths of their hands are different. This will most likely be the case for 'height of one of your classmates'.
Please let me know if you need any clarification. I'm always happy to answer your questions.