Q: Name a capital of a country. Change the first letter to name a familiar musical instrument. What is it?It's not easy to come up with a thumbnail that doesn't give the answer away.
Edit: My hints were to an alternate answer. The photo is from a music store in Yuba City, California. The word "ThUmBnAil" contains "TUBA" in order.
A: Caracas (Venezuela) --> maracas.
Juba (South Sudan) --> tuba