The Probert Encyclopaedia of Norse Mythology

ALVIS

In Norse mythology, Alvis was a dwarf who wanted to marry Thor's daughter, Thrud. Unlike most suitors, Thor didn't challenge Alvis to a test of strength, but instead challenged him to a riddle contest. He spent the whole night asking Alvis questions until the day dawned and the rising sun turned
Alvis to stone.
Research Alvis