Is it normal for weigh to shift as much as 5 to 10 pounds?

Not in a day, no. Maybe in a specific amount of time period.

Depends if you are eating right and staying healthy. The weight gain then could be muscle. But if you aren't then, no because you're eating unhealthy.

Pretty sure this would be b. the rest are trick questions. the bystanders  won't go near you if u have cpr cuffs that could hurt them. the dog will back off because the sound will scare him. and the vomits just a stupid trick. if there is that much slober and vomit on the guy hes either choking on it, or just take off his shirt.