Riddles, one at a time
Flatbread Pan
A pan holds 2 flatbreads. Each side needs 1 minute. How few minutes can it take to cook 3 flatbreads on both sides?
Do not wait for one flatbread to finish before starting the third.
3 minutes
Minute 1: A and B. Minute 2: A's other side and C. Minute 3: the other sides of B and C.
Lemon, Tea and Dates
25
Lemon 10, cup 5, date 2. Multiply first: 5 + 20 = 25.
Longest Roman Year
Which year needs the MOST Roman letters?
Some digits need many letters: 8 is VIII, but 9 is just IX.
1888
1888 = MDCCCLXXXVIII: 13 letters. 1777 needs 10.
Two Candles: Twice as Tall
Two candles of the same height are lit together and burn at a steady rate. A lasts 4 hours, B lasts 6 hours. After how many hours is B twice as tall as A?
A loses a quarter of its height each hour, B loses a sixth.
3 hours
After 3 h, A has 1/4 left and B has 1/2 left: twice.
Word Ladder: Hall to Silk
MILL
HILL to MILL changes H to M; MILL to MILK changes L to K.