> > 22. In most advertisements, the time displayed on a watch is 10:10.

Definitely untrue: In most advertisements, there is no watch whatsoever.

But apart from such quibbling: Don't know what the practice is nowadays, but it used to be 8:20 instead. The (untrue) urban legend was that this time was selected in honor of President Lincoln, being (supposedly) the time at which he was shot.