The 20 minute physical activity I performed was doing yardwork. It was fairly easy to do, besides a lot of bending down involved to pick up sticks. I did it in my front and backyard for a bit over 20 minutes, and no one did it with me.
The correct answer is Your lap.
No, all you need to solve a rubiks cube is patience, common sense, and courage that you know you can do it. anyone can do it!
A single cell is often a complete organism.
