How much time elapses between any Sunday 29 February and (going forward in time) the next respective Tuesday 29 February? (This is not a trick question and is reasonably straight-forward to work out if you have that sort of brain...)
24 years. Given that after every normal year the days of the week advance by one day, and after leap-years by two days, then leap-year days advance by five days each time (every four years).