yes
Er.... Walking, cycling, swimming
Yes, you can burn calories when swimming with a backboard. It is a good way to loose calories.
Running is very good for burning the calories. It is very good to prevent the complications related to your heart. It keep you overall fit.
Running 1 mile is equal to swimming 500 to 640 meters at a moderate pace when it comes to burning calories. Even though both the exercises are vastly different, their calorie burning impact is very similar. Same amount of calories is burnt while swimming and running for the same amount of time.
Good for you
Yes, as long as you don't wear yourself out while burning them.
Yes, but not a significant amount. Typing / data entry uses about 100 calories per hour. Swimming, by comparison, burns 500 to 600 calories an hour.
It depends. If you've had a lot to eat, more than usual, or you're overweight, then burning calories is a fine option.
Cardio exercises are the best exercises for burning calories. These are exercises which get your heart pumping faster, such as jogging, running, swimming, dancing and active sports.
No, Digesting calories is taking in calories, Burning calories is working off calories.
It depends on the individual. In general, though, that is a good number of burning calories.
Specially the running. Swimming is a good way too. :)