Apollo 11 was launched on 16/7/1969.
The three men who flew Apollo 13 were Jim Lovell, Fred Haise, and Jack Swigert.
Officially, there was no Apollo 2 or 3. These were unmanned flights that took place after the Apollo 1 fire, while officials were still trying to decide if they wanted to continue using the Apollo name. By the time they had made up their minds they had already launched 2 test flights of the Saturn V. Following after those, they flew three more unmanned tests, named Apollo 4, 5, and 6. The first manned mission was Apollo 7. Actually, that's not quite it. First of all, patches were commissioned only for manned missions, and contrary to the Wikipedia article, examination of the photographs shot during training reveal that the patch Grissom, White and Chaffee designed for AS-204 has no designation at all. Second, the unmanned flights that would have been designated Apollo 1, Apollo 2, and Apollo 3 flew BEFORE the flight that Betty Grissom insisted be designated Apollo 1. AS-201 (Apollo 1) flew on 26 February 1966, AS203 (Apollo 3) flew on 5 July 1966, and AS-202 (Apollo 2) flew on 25 August 1966. The flights after AS-204 used the normal designations assigned after liftoff. Note that, by this scheme, AS-204, had it been launched, would have been designated Apollo 4, not Apollo 1.
Each Apollo mission carried 3 crew members.
Apollo 18 never flew due to budget cuts. The budget cut was caused by the Apollo 13 disaster.
Apollo 11 was launched on 16/7/1969.
As each Apollo spacecraft had three astronauts at a time and seven Apollo crafts flew to the moon, there were a total of 21 astronauts.
The three men who flew Apollo 13 were Jim Lovell, Fred Haise, and Jack Swigert.
Neil Armstrong flew in the Apollo 11 spacecraft.
Officially, there was no Apollo 2 or 3. These were unmanned flights that took place after the Apollo 1 fire, while officials were still trying to decide if they wanted to continue using the Apollo name. By the time they had made up their minds they had already launched 2 test flights of the Saturn V. Following after those, they flew three more unmanned tests, named Apollo 4, 5, and 6. The first manned mission was Apollo 7. Actually, that's not quite it. First of all, patches were commissioned only for manned missions, and contrary to the Wikipedia article, examination of the photographs shot during training reveal that the patch Grissom, White and Chaffee designed for AS-204 has no designation at all. Second, the unmanned flights that would have been designated Apollo 1, Apollo 2, and Apollo 3 flew BEFORE the flight that Betty Grissom insisted be designated Apollo 1. AS-201 (Apollo 1) flew on 26 February 1966, AS203 (Apollo 3) flew on 5 July 1966, and AS-202 (Apollo 2) flew on 25 August 1966. The flights after AS-204 used the normal designations assigned after liftoff. Note that, by this scheme, AS-204, had it been launched, would have been designated Apollo 4, not Apollo 1.
Each Apollo mission carried 3 crew members.
Apollo 18 never flew due to budget cuts. The budget cut was caused by the Apollo 13 disaster.
The astronauts of Apollo 11 were Neil Armstrong, Edwin "Buzz" Aldrin, and Michael Collins
No, none of the crew of Apollo 13 flew in space again.
The question is not clear, there were three astronauts at a time in a Apollo mission , and there were 11 Apollo missions.
The Apollo-Soyuz mission flew in July, 1975.
He flew the X-15 for NACA, and later, with NASA, he flew Gemini 8 and Apollo 11.