I need to know some good riddles. Can you help me out?

Which of the following may have influenced neumatic notation? a. ancient roman music b. muslim chant notation c. hindu chant notation d. byzantine

What is the main element that sets western art criticism apart from that of the rest of the world

Acurious child asked his mother: “mommy, why are some of your hairs turning grey? ” the mother tried to use this occasion to teach her child: “it is because of you, dear. every bad action of yours will turn one of my hairs grey! ” the child replied innocently: “now i know why grandmother has only grey hairs on her head.”