Assuming this refers to Flowers for Algernon, no, they do not. At the end of the story, Charlie begins to see a recession in his intelligence. He reverts back to how he was at the beginning of the story. This proves that Dr. Strauss' experiments are not permanent.
Answer:
"Wheels" refers to the wheels of the car beginning to turn as Milo thinks. It also refers to the "wheels" of Milo's mind turning after not doing much thinking for a long time.
A) When will you be able to meet for lunch, Grandpa Henry?
A) varied
Varied/variety means there's many, which is said in the next sentence.
