HOW TO PLAY FIVE STONES

What you need:

2 or more players, a flat surface to play on, and a set of five stones. 

Complete all 7 levels below. The player who does so with the least number of attempts wins the game. In the process if a player drops a stone, his/her turn ends. The other player can then pick up at the level he/she didn't complete, starting at the beginning of that level. 

How to play:

Pick stones up one at a time:
Throw down all 5 stones. Pick 1 up and throw it in the air, quickly pick a 2nd stone while the 1st is still mid-air, and catch it while it falls. You should then have 2 stones in your hand. Put 1 of them aside and repeat with each of the remaining 3 stones. 

Level 1

Level 2

Pick stones up two at a time:
Repeat level 1 but pick up 2 stones at a time, put 2 stones aside and repeat. 

Pick one stone up, then the remaining three stones:
Repeat level 1 but pick up 3 stones after putting the 1st stone aside.

Level 3

Pick all four stones up:
Throw down all 5 stones. Toss 1 stone in the air and pick up the remaining 4 stones at the same time before catching the 1st stone.

Level 4

Toss one stone up, drop all remaining stones before catching it, then pick them all up:
With all 5 stones in 1 hand, toss up 1 stone and drop the other 4 before catching the falling stone. Then toss the stone up again and pick up the other 4 before catching the stone again. 

Level 5

Take two stones, throw one in the air while swapping the other with one on the ground:
Throw down all 5 stones, then pick up 2 stones. Throw 1 in the air and swap the one in your hand with another on the ground, then catch the other stone before it lands. Repeat the same with the rest of the stones. You'll be left with 2 stones in your hand. 

Toss up the 2 stones left in your hand, pick up 1 stone from the ground, and catch the 2 falling stones separately with 2 hands. Repeat until you are left with 3 stones in one hand and 2 in the other. Throw the 2 stones in your hand and catch them separately in both hands. Throw the single stone in one hand and catch it with the other hand with all the stones. 

Level 6

Opponents get to choose which stone you start with. Pick up all remaining stones: 
Throw down all 5 stones. Your opponent selects a stone to be thrown in the air. You have to pick up the selected stone without moving others then toss it into the air. Pick up all the 4 remaining stones at the same time then catch the falling stone. 

Level 7