MudPuppy Unicorn Magic Magnetic Build-It: Magnetic Build-it Toy - 3 Sheets, 4 Scenes, Ages 6+

Are the scenes magnetic as well?

Are the magnets strong enough to hold paper, pictures, cards to a fridge or are they just for play?

Anyone like to share pictues to help others decide if this is a good fit? Like no pictures of all characters.

Exactly how many magnets come with the set?