Astronauts have work out machines to keep their muscles strong. They exercise every day.
of course , but it would not be the same weight as on earth
you would need more than a space suit!
You don't need to "do" weights, but most boxers do some strength training with weights!
Yes you need your own weights for the videos for the arm lifting, or any one of the videos that require weights.
You need balance. Weights equal to the weight of the workpiece on the holder.
You will need a space suit , water, food, space craft and yourself.
you would need a space suit and supplies also a lot of space food and the most important a spacecraft.
Most egg timers would work in space (zero gravity) apart from the sand hourglass type. The rely on springs and gears to keep time not weights.
if there was air in space space men would not need suits and oxygen
Without Oxogen, No. You would need a special suit, the pressure in space would kill you. You would need to stay in the space ship.
None, because of the absence of gravity
you would need a space suit and supplies also a lot of space food and the most important a spacecraft.