1. There are many solutions, including these for problems 2 through 5, below.
For puzzle 4: Starting at top left, the ball rolls in sequence to B, then C, then A.
The answer to puzzle 4 is shown in three parts. The first seven moves reach the yellow flower just above the center. The next five moves come back to the same yellow flower at a different angle. The final 10 moves, which are the same as the solution to puzzle 3, start by reversing the path in 4a, then branching off to reach the end.
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