A learned man visits Emperor Akbar’s court. Before leaving, he tells Akbar that he will visit the palace again the next month. But he does not reveal the day. He adds that when he returns, he expects gold in grams equal to the date on which he would visit. Akbar asks Birbal for a solution.

Birbal instructs the royal jeweller to make 5 gold rings of different weights for the man. Can you figure out the different weights of the 5 rings

ANSWER: The 5 rings weigh 1,2,4,8 and 16 grams so Akbar can give the rings in the appropriate combination to the learned man whenever he visits from the 1^st to the 31^st of the month.