Videha
Jataka Tales
Panca-Pandita Jataka: No. 508, the Secret Beneath the Trough
Jealous of Mahosadha, counselor Senaka sets a riddle about secrecy meant to brand him a traitor, but Mahosadha overhears the four wise men's own guarded secrets and turns the trap on them.
Sirimanda Jataka: The Poor Wise Man and the Wealthy Fool
A king asks his senior counselor whether wealth or wisdom is better, and his young advisor Mahosadha answers with an argument the court could not refute.