The Mind of Dr. Seuss

What are the names of the mischievous Dr. Seuss pair who wear red jumpsuits and have bright blue hair?

Who is the feline Dr. Seuss character who wears a red and white-striped hat and a red bow tie?

Who is the Dr. Seuss character, guardian of the Turffula trees, who is described as "shortish, and brownish, and oldish, and mossy, and he spoke with a voice that was sharpish and bossy?"

What is the name of Dr. Seuss' elephant who hears a Who?

Which green Dr. Seuss character is not a fan of Christmastime?

Which Dr. Seuss character, a little girl Who no older than two, was a main character in "How The Grinch Style Christmas?"

Which Dr. Seuss character was the protagonist of the book "Green Eggs & Ham?"