DAY 34
If a standard-size cigarette can be rolled out of six standard-size cigarette butts, how many cigarettes can be made and smoked from 36 butts?

Answer:

7.....The 36 butts will yield 6 cigarettes, which when smoked, will yield 6 more butts. The 7th cigarette can be made from those 6 butts.

DAY 35
In the integers 0 to 99, which digit appears least frequently?

Answers:

O.....It appears only ten times. The other digits appear 20 times each.