Garden Trivia Answer
Strawberry! Although saying its seeds are on the outside is a bit misleading! Fruit is typically formed from a ripened ovary. A strawberry is classified as a pseudocarp (also called accessory fruit or false fruit) because the fleshy part we eat is not formed from the ovary but the receptacle instead. The receptacle is the base of the flower where all the flower parts (petals, stamens, etc.) come together.
The true fruits of a strawberry are the tiny brown or whitish specks on the surface. These “seeds” are actually tiny dry fruits called achenes with a teeny-tiny seed inside of them. This makes the strawberry best classified as an aggregate fruit with many tiny individual fruits embedded on the surface of a fleshy receptacle.