Solution:

Rasmas is lying, how can he be so well-shaven after being alone in the woods for a week?

Solution:

Strawberries don't grow on bushes.

Solution:

The boy on the right is the one. The piece of his shirt is with the deceased girl, as indicated.

Solution:

Microwave

Mic + row(rowing) + wave

Solution:

Open doors.

Solution:

No human footprints.

Footprints in snowy weather are inevitable. Therefore, while the dog leaves paw prints in the snow, its human companion doesn't.

Solution:

The ghost is marked in the picture below.

Solution:

The person who is dead is B.

The presence of numerous flies around foot B strongly indicates that this individual has passed away.

Solution:

The thief turned out to be Anthony, who cunningly concealed the watch inside a bucket.

Solution:

Ghosts don't sweat, so the girl in the center is not a ghost.