You need to check that your friend, Bob, has your correct phone number, but you cannot ask him directly. You must write the question on a card and give it to Eve who will take the card to Bob and return the answer to you.
What must you write on the card, to ensure Bob can encode the message so that Eve cannot read your phone number?
Riddle AnswerAt a children’s party, 10 kids had juice, 8 kids had cake, and 6 kids had juice and cake.
How many kids were there at the party?
Riddle AnswerTwo beauticians have three customers, each needing a facial and a manicure.
Each hairdresser takes fifteen minutes for a facial, and five minutes for a manicure. What’s the quickest they can get the job done?
Riddle AnswerOn the island of knights and knaves (where knights always tell the truth and knaves lie), you meet two islanders named Penny and Quinru.
Penny: Both Quinru and I are knaves!
What are Penny and Quinru?
Riddle Answer