Answer:
There are three wishes made with the paw while there are also consequence for the wish.
The first wish, is when the Whites did not really believe in the paw, and thought it was a joke, so Mr. White wished 200 pounds. They did got the money afterwards, but their son, Herbert, got mangled in some machine and died, and so they received 200 pounds as a compensation.
The second wish is Mrs. Whites wants Herbert to live again. We should assume that he did got "alive" since in the story someone was knocking fiercely after the wish. However, we need to remember, Herbert died from machine mangling, which means his whole body is basically break in corpse. So the compensation is Herbert's corpse got "alive".
The third wish is Mr.White wished Herbert dead. However, this is not told in the story but it is foreshadowed because after his wish, the knocking goes away.
"great python spitting its venomous kerosene upon the world" - This metaphor compares the hose of the flamethrower to a snake. The purpose of the metaphor is to show the destructive power of the flamethrower.
"his hands were the hands of some amazing conductor" - This metaphor compares Montag to a conductor. It shows his control over the fire and his enjoyment of burning everything. By comparing Montag to a conductor, it makes his job almost a form of art and beauty.
