Other contributors have said "How much does ENIAC weight?" is the same question as "What is the weight of the ENIAC?" If you believe that these are not asking the same thing and should be answered differently, click here
No you do not need to lose weight. 120 is a good weight, but it all depends on how tall you are. If you are any where from 4'11 to 5'4 that is a good weight. If you are shorter you may need to watch...
If you use strength exercise to increase your muscle tissue, you will be heavier (all things being equal) because a given volume of muscle is heavier than that same volume of fat. However, if you are...