Q: I’ve written fifteen books and never had such a complete whitening of thought, like a blizzard against your windshield, no options available but to pull over and stop.

like a blizzard against your windshield?? とはどういう意味ですか?
A: This simile, ‘like a blizzard against your windshield’ refers to a extremely bad snowstorm. In a blizzard, the snow comes down so fast and heavy, that while you’re driving, you can’t see out your front windshield, and can’t see the road. Since that is dangerous, you have no choice but to stop your car and move to the side of the road.

This person is basically saying that they can’t think of how to write their next book. They are experiencing writer’s block.
Q: We invested fifteen of the seventy-five-thousand-pound prize money to help secure our future. とはどういう意味ですか?
A: They're saying they invested fifteen thousand (15,000) out of an original sum of seventy-five thousand (75,000). Does that make more sense?
Q: For fifteen minutes he shouted FOUR-LETTER OBSCENITIES, とはどういう意味ですか?
A: it means the person cursed (bad words)for 15 minutes.
Q: at fifteen hundred hours とはどういう意味ですか?
Q: It is three fifteen. とはどういう意味ですか?
A: It is a reference to a time. It is a quarter past three, 03:15 or 15:15.....


Q: fifteen hundred と one thousand and five hundred はどう違いますか?
A: I see! Thank you for your help :)
Q: I have lived here for fifteen years. と I have been living here for fifteen years. はどう違いますか?
A: These are almost exactly the same
Q: fifteen hundred と one thousand five hundredth はどう違いますか?
A: 意味は同じです。
“Hundredth” じゃなくて。
あなたが “one thousand five hundred” を意味することと思います。

Fifteen hundred is slang for one thousand five hundred.

1300: “thirteen hundred” or “one thousand three hundred”

2100: “twenty-one hundred” or two thousand one hundred”
Q: fifteen と fifty はどう違いますか?
A: as to what said above, they're both numbers. fifteen is 15 and fifty is 50

here's the pronunciation :D
Q: 2015年,two thousand fifteen と twenty fifteen はどう違いますか?
A: Just preference. 年 isn't used in English, but the other two can be used interchangeably.


Q: I don't know where I should stress when pronouncing "fifteen"
Should I pronounce it "FIFteen" or "fifTEEN"? は 英語 (アメリカ) で何と言いますか?
A: QAの全文をご確認ください
Q: 1. I add up to fifteen.
2. You don't answer back your boss.
3. They must't smoke in muy house.
4. You should study every day at the afternoon. は 英語 (イギリス) で何と言いますか?
A: 1. I [can] add up to fifteen.
2. You don't answer back to your boss/don’t answer your boss back.
3. They mustn’t smoke in my house.
4. You should study every afternoon.
Q: One out of fifteen Americans had their first job experience at McDonald's. In addition, over half a million people in the USA are employed by McDonald's and millions more have moved on to other jobs. は 英語 (アメリカ) で何と言いますか?
A: This is correct they way it is.
Q: '2:15pm 2:45pm. I learned to say only two fifteen, two forty five in Korea. But in Canada I heard ..past 15??, before 15?? that(I'm not sure what it is)' は 英語 (アメリカ) で何と言いますか?
A: past is like u say its 15 minutes past 2 pm that means its 2:15 ...maybe i didnt quite understand the question...😓
Q: 06:15 at six fifteen? は 英語 (アメリカ) で何と言いますか?
A: 6:15 is 'six fifteen' or 'a quarter past six'


Q: When I was fifteen, I went to New Zealand.
I remembered that the country has peace and beautiful nature. この表現は自然ですか?
A: When I was fifteen, I went to New Zealand.
I remembered that the country has peace and beautiful nature.

It's fine except that you need to say "I remember..." instead of "I remembered...." Because it's something you are currently remembering, not something you remembered while you were there.
Q: When I was fifteen, I was always reading books of Yukio Mishima late into the night.
There were a lot of words that I had never heard before, so I was keeping look up words and writing them down.
It was not a pain totally. because I felt it like an exciting exploration.
and now, leaning English is same as that. この表現は自然ですか?
A: You seem to have problems with conjugating into past tense
Q: It takes fifteen minutes walk to get to some restaurants from my house この表現は自然ですか?
A: It takes a fifteen-minute walk from my house to get to some of the restaurants / to get the restaurant.

some of the restaurants: more than one
the restaurant: one specific restaurant
Q: "It takes about fifteen minutes to Yoyogi Park from here. Turn left at the first corner, walk straight, and turn left again at the second traffic lights and then keep just going straight about ten minutes. The end of the street is the entrance of Yoyogi Park. As today is Sunday, I guess there is some kind of event going on and there are a lot of street performers around there. You can take in the performers so." この表現は自然ですか?
A: Very good! Some small corrections: "second traffic lights" change to "second traffic light" (lights is plural, means more than one light).
"is the entrance of Yoyogi Park." I would use "is the entrance to Yoyogi Park."
"the performers so." instead of "so" I think you meant "too."
Q: Could you tell me how to read "in 2015"?

Twenty fifteen or two thousand fifteen, which one is natural?
A: If it is a year or date then either is fine.

If it is a quantity like 'there are 2015 cats' you have to say 'two thousand and fifteen'