I hope that you enjoyed Saturday’s special centenary edition of Mac Riddles. Here are my solutions to them.
1: Undo undo with a capital Z.
Click for a solution
redo
Undo undo (what redo does) with a capital Z (the shortcut for it).
2: A 1912 studio with what sounds like grain in public transport has been on Macs since 1998.
Click for a solution
USB
A 1912 studio (Universal Studios was founded that year) with what sounds like grain (cereal/serial) in public transport (bus) has been on Macs since 1998 (when USB was introduced).
3: A mass you may want to bar with a series of links to a distributed ledger for virtual riches. What am I?
Click for a solution
blockchain
A mass (block) you may want to bar (block) with a series of links (chain) to a distributed ledger for virtual riches (what a blockchain is). What am I?
4: Almost a utility, I illuminate various schools of thought rather than a unified log. What am I?
Click for a solution
The Eclectic Light Company blog
Almost a utility (Electric Light Company), I illuminate (light) various schools of thought (eclectic) rather than a unified log (blog). What am I?
I look forward to your putting alternative cases.
The Eclectic Light Company 