Mathematics · Puzzles

There are seven boxes named Mega, Meta, Rita, Docu, Gimu, Tina, and Lopu of different colours: Black, Violet, Red, Blue, Yellow, White, and Green, kept one above another, but not necessarily in the same order. Only two boxes are kept between the Yellow box and box Docu, which is kept above the Yellow box. Box Docu is not Green. The Black box is kept above the Violet box. Neither Box Rita nor Box Gimu is Black. Box Gimu is kept above box Tina. There are two boxes between box Mega and the Green box. Box Rita is kept either immediately above or immediately below the Green box. More than two boxes are kept between Box Rita and the Red box, which is neither at the top nor at the bottom. Box Mega is not Red. Only one box is kept between the Red box and the White box. Box Mega and box Gimu are not White. Box Meta is Blue and is neither at the top nor at the bottom. Which box is kept immediately on top of Box Docu?