англичане помогите! здесь достаточно просто я размышляю

1) How many passengers of the Titanic were rescued by the Carpatha?
2) How many tickets were sold for the first voyage from Europe to America?
3) When was Petropavlovsk-Kamchatsky founded?
4) When are books on travelling and travellers often sold in the spring?
5) How many copies of the magazine "The Travelling in the Jungle" have been sold this week?
6) Who knows how many cases of UFOs visits to the Earth have been registered in the last 50 years?
7) When will most mysteries of the past be solved?