Venus takes 243 Earth days to spin once, but only 225 to orbit the Sun — so a single Venusian day outlasts its year.
Saturn is mostly hydrogen and helium, giving it a density lower than water. Find a bathtub big enough and the ringed planet would bob on the surface.
Radar-bright peaks on Venus may be coated by metals that vaporize lower down and condense on cold mountaintops.
