From the archive
Day 1
Tuesday, 4 August 2026
Intermediate
Retirement Plan Vesting
Five years of service, counted properly — not by subtracting calendar years.
Task:
You work in HR administration. The retirement plan vests employees who have completed at least 5 years of service, measured as of 1 August 2026. From each hire date, work out the completed years of service in column C, then mark column D "Vested" or "Not vested".
The daily challenge is part of Pro
A new exercise every morning, plus every day that came before it — a back catalogue that grows by one a day, whether or not you were here for it.
Recent days
The last 14 days. Today's challenge is free while your streak is alive; Pro opens every past day too.
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- Day 25 · Friday, 28 August 2026Set contract review deadlines from a rush flag
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- Day 23 · Wednesday, 26 August 2026Look up carrier rates without an error for the one that isn't contracted
- Day 22 · Tuesday, 25 August 2026Split an order number into its channel and sequence
- Day 21 · Monday, 24 August 2026Total a purchase order without a helper column
- Day 20 · Sunday, 23 August 2026Pull the items that need reordering off a warehouse count
- Day 19 · Saturday, 22 August 2026Rank a sales contest without reordering the table
- Day 18 · Friday, 21 August 2026Decide which support tickets get escalated
- Day 17 · Thursday, 20 August 2026Work out shipping cost from a weight bracket table
- Day 16 · Wednesday, 19 August 2026Check whether a retirement savings plan hits its target