True or false?

This is one of the jokey presents I was given back in the dim and distant past of Christmas 2007, one of those flip-over desktop things. A so-called 'friend' gave it to me. Not sure what he was implying by choosing this selection of Signs for SENIOR Moments (I'd have thought something along these lines is more suitable for a significant birthday than for the ho-ho-and-holly season).

Anyway, some of the sayings are good for a laugh (and, in the opinion of some of my other so-called 'friends' who were at last Saturday's music session in my place, richly appropriate for the recipient). I'll get my own back on the so-and-so who gave me this. Retribution will follow. Mark my words.