Saturday Mac riddles 164

Here are this weekend’s riddles to entertain you through family time, shopping and recreation.

1: Forty has the formulae of pre-eminence against digits.

2: White metal with sunshine media was unplugged last October.

3: Retinue brought mail and more for a decade before the outlook changed.

To help you cross-check your solutions, there’s a common factor between them.

I’ll post my solutions first thing on Monday morning.

Please don’t post your solutions as comments here: it spoils it for others.