Riddles, one at a time
Word Ladder: Ship to Slow
SHOW
SHOP to SHOW changes P to W; SHOW to SNOW changes H to N.
Dim or Bright
What number does the last row show?
First find each lamp's value: the top row gives the left lamp.
22
The top 3 rows give lamp values 9, 3 and 1. Bright counts double: 18 + 3 + 1 = 22.
Five Weekends
What day of the week is the 1st?
How many days must the month have for 3 days of the week to come 5 times?
Friday
31 days = 4 weeks + 3 days, and those 3 extra days start the month: Friday, Saturday, Sunday.
Mirror Clock: 13:31
How many minutes until the clock shows the next mirror time?
Try the next hour: 14:??
70 minutes
The next mirror time is 14:41, 70 minutes later.
Mirror Odometer: 15951
How many more km until the next mirror number?
The middle digit is already 9, so it cannot go up. What has to change instead?
110 km
The next mirror number is 16061: 16061 − 15951 = 110.