Gifts: book, candy, flowers, money and scarf.
The participants are unmarried, grown-up people of mixed genders, each being both a giver (donor) and a receiver, in a way that no one gave or received an item bearing his or her name and none gave a present to the person from whom he or she received one.
The present received by Flowers was the name of the donor of the scarf, Scarf sent flowers to the book-giver, Candy gave Scarf a present and Book received candy.
a. Find out, who gave what to whom.
b. You may deduce (with no certainty) from the nature of the gifts the probable gender of each of the people mentioned,
Source : (Slightly abridged) problem #98 from Penguin’s Problems book by William and Savage 1940.