Short answers, pulled from the story.
Venera 13 found that its landing area was composed of bedrock outcrops surrounded by dark, fine-grained regolith. X-ray fluorescence spectrometry classified the surface samples as weakly-differentiated melanocratic alkaline gabbroids, a type of iron-rich igneous rock. The probe also recorded wind noises, making it the first spacecraft to capture sound from another planet.
Venera 13 was designed to operate for about 32 minutes on the Venusian surface, but it continued functioning for at least 127 minutes. The surface temperature was 457 degrees Celsius and the atmospheric pressure was 9.0 MPa (89 standard atmospheres).
Venera 13 landed on Venus on the 1st of March 1982, after a four-month cruise from Earth. It touched down at 03:57:21 UT at coordinates 7.5 degrees South, 303 degrees East, just east of the elevated region known as Phoebe Regio.
Venera 13 made the first recording of sound from another planet when it landed on Venus on the 1st of March 1982. The recording captured Venusian wind, the lander striking the ground, pyrotechnic lens cap removal and its impact on regolith, and the operation of the regolith drilling apparatus.
Leonid Ksanfomaliti published an article in Solar System Research claiming that Venera 13 images showed objects resembling a scorpion, a disk, and a black flap that appeared to move. Engineers identified the moving disk as the two ejected lens caps, and the other objects were attributed to image processing artifacts. These claims were refuted by other scientists and by the Live Science website.
Venera 13 launched on the 30th of October 1981 at 06:04 UTC. Its on-orbit dry mass was 760 kg. Its twin spacecraft, Venera 14, launched five days later on the 4th of November 1981.