Compose and run filters to answer the following questions:

1. How many tiddlers are in the wiki?
2. How many of those are system tiddlers?
3. What meetings contain a link to JaneDoe?
   • Hint: Work backwards.
4. Which contact has the alphabetically earliest phone number?
5. Which tiddlers have text in a field called at?
6. Which tiddlers contain the words JaneDoe and help somewhere in their text field? Use only a single filter step.