The Penguin IQ Test

Synopsis

The penguin was cruelly taken away from his native land, separated from his family, and locked up inside a dungeon...
Now he is trying to return to the ice floe to find his loved ones again...
However, he is not sufficiently smart to solve the puzzles on his way home ...

Rules

You have to place objects correctly to help the penguin safely reach the exit.
There could be multiple correct solutions.
A correct solution is always easy to verify but may be difficult to find, unless P is equal to NP.