Which of these instruments is NOT in the Naruto theme song?

What happens when Jigglypuff sings in a Pokemon battle? 

What kind of music is the Dragonball Z theme?

The opening song "My War" is from which anime? 

Who performed "Silhouette" from Naruto?  

"Cha-La Head-Cha-La" is the opening theme song for which of the following anime? 

Who performed the "Pokemon Theme" song? 

“The WORLD” By Nightmare is from which anime? 

Which J-pop band performed “Guren no Yumiya,” the first opening theme of Attack on Titan?

The opening theme “Colors” is from which anime?