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

1: Iron, copper, mercury, shaders.

2: Silica successor to 3 went from 2D to extreme.

3: Classic climbing extender replaced by 2 and all but vanished now.

To help you cross-check your solutions, or confuse you further, 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.