General knowledge quiz
Birthstones: which month?
Opal, peridot, tanzanite: each stone on the official list belongs to one month. Press the month for each stone.
- Format
- Sort into groups
- Items
- 19 to sort
- Limit
- 2:30
- Level
- Hard
- Checked
- 2026.10.03
- Items
- 19
- Groups
- 12
- Time limit
- 2:30
- A miss
- 2 tries, then the answer is shown
- Each stone appears in turn. Click its month, or press its number.
- The groups never move, so the number keys are quick.
- Skip (0) sends a prompt to the back of the queue.
- Pause whenever you like (Esc). The board hides while the clock is stopped.
Press the month each stone is the birthstone for. The groups appear when you start.
About this quiz
Seven months have a single birthstone. The other five share twelve stones between them.
- June and December have three stones each, more than any other month.
- You get two tries on each stone.
- The months stay on the board in calendar order.
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| No. | Quiz | Section | Format | Items | Added |
|---|---|---|---|---|---|
| 01 | Birthstones by month Garnet for January, diamond for April. Name a birthstone for each of the twelve months; where a month has several, any one will do. General knowledge / Type them all / 12 answers | General knowledge | Type them all | 12 | 2026.10.03 |
| 02 | Days in each month: 28, 30 or 31? Twelve months and three boxes: 31 days, 30 days, or 28 with a leap day now and then. File every month before the rhyme runs out. General knowledge / Sort into groups / 12 to sort | General knowledge | Sort into groups | 12 | 2026.10.03 |
| 03 | US federal holidays: which month? Labor Day, Memorial Day, Veterans Day: which month does each fall in? File all eleven US federal holidays under the right month. General knowledge / Sort into groups / 11 to sort | General knowledge | Sort into groups | 11 | 2026.10.03 |