Random Trivia-Find the odd one out

Three of these are Disney princesses,one isn't-pick the odd one out:

• Aurora

• Merida

• Tiana

• Fiona

Three if these country flags have the color blue,one doesn't-pick the odd one out:

• France

• Chile

• Romania

• Jamaica

Three of these are primary colors,one isn't-find the odd one out:

• Blue

• Green

• Yellow

• Red

Three of these are renewable energgy sources,one isn't-pick the odd one out:

• Coal

• Solar

• Wind

• Hydroelectric

Three of the following planets are gas giants,one isn't-pick the odd one out:

• Neptune

• Jupiter

• Earth

• Saturn

Three of these are Cartoon Network shows,one isn't-pick the odd one out:

• Teen Titans

• Looney Tunes

• Samurai Jack

• Kim Possible

Three of the listed singers were popular during the 2000's,one wasn't-pick the odd one out:

• Avril Lavigne

• Adele

• Britney Spears

• Justin Timberlake

Three of these are primary tastes,one isn't-pick the odd one out:

• Sour

• Sweet

• Bitter

• Spicy

Three of these animals are mammals,one isn't-pick the odd one out:

• Orca

• Bats

• Hedgehog

• Pigeon

Three of the listed languages are Romance languages,one isn't-pick the odd one out:

• Russian

• French

• Italian

• Spanish