diff --git a/.gitignore b/.gitignore
index 5e5cf26..ca882b8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 *.log
 /*.db
 /*.conf
+/env
diff --git a/questions/questions.doctorlard.en b/questions/questions.doctorlard.en
index c9721cf..45eaf71 100644
--- a/questions/questions.doctorlard.en
+++ b/questions/questions.doctorlard.en
@@ -34,6 +34,70 @@
 #  DO NOT ADD COMMENTS BEYOND THIS LINE, since they might get lost.
 #  you may add as much comments as you want into the part above
 
+Category: Units
+Question: What does the SI unit weber (Wb) measure?
+Tip: m....... f...
+Answer: magnetic flux
+Author: DoctorLard
+
+Category: Units
+Question: Four gills in a ....?
+Tip: It's an Imperial unit.
+Tip: You might ask for one at the pub.
+Tip: p...
+Answer: pint
+Author: DoctorLard
+
+Category: Units
+Question: Ten chains in a ....?
+Tip: It's an Imperial unit of length.
+Tip: f......
+Answer: furlong
+Author: DoctorLard
+
+Category: Units
+Question: Four .... in a chain?
+Tip: An obscure Imperial unit of length.
+Tip: Equal to 5½ yards.
+Tip: r..
+RegExp: (rod|pole|perch)
+Answer: Rod (or Pole, or Perch)
+Author: DoctorLard
+
+Category: Units
+Question: Eight .... in a mile?
+Tip: An Imperial unit of length.
+Tip: Equal to 220 yards.
+Tip: f......
+Answer: Furlong
+Author: DoctorLard
+
+Category: Units
+Question: A perch is unit of area equivalent to a square pole. A pole is another name for a rod, and there are ten chains to a furlong and four rods to a chain. A rood is a quarter acre, and there are 160 perches to an acre. If a property area is one rood and half a furlong on one side, how long is the other side, in rods?
+Tip: Less than you might think.
+Tip: Whatever. Google won't help you either.
+Level: hard
+Answer: 2
+Author: DoctorLard
+
+Question: How many pennies in a half crown?
+Answer: 30
+Author: DoctorLard
+
+Category: Units
+Question: What is the old English surveying unit of area, defined as one furlong by one rod?
+Tip: There are four of them to an acre.
+Tip: r...
+Answer: rood
+Author: DoctorLard
+
+Category: Units
+Question: What is the SI prefix that denotes a multiplier of ten to the negative eighteenth power (10¯¹⁸)?
+Tip: It's used really really small quantities.
+Tip: a...
+Answer: atto
+Author: DoctorLard
+
 Category: Temporal anomalies
 Question: How many times do the minute and hour hands on a clockface overlap in a 24 hour period?
 Answer: 22