Riddles, one at a time
How Many Routes: Two Roadblocks
Only right or up. The cone corner and the striped street are closed. How many different routes from start to the gem?
Add the counts from the left and below, but skip the cone and the closed street.
14
Skip the cone and the closed street, add left + below: 14.
Fewest Tokens: Pay 6
Which tokens pay 6 with the fewest tokens?
Biggest first is not always fewest. Try every pair.
3 + 3
Just 2 tokens. Biggest first, 4 + 1 + 1, needs 3.
Fence Posts
A straight 15 m fence has a post every 3 m, with one at each end. How many posts are there?
Count the gaps first, then the posts.
6
15 ÷ 3 = 5 gaps, and 5 gaps need 6 posts.
Gem Finder: Three Gems, One Blank
A number counts the gems in the 8 tiles around it; numbered tiles have none. Which lettered tile has NO gem?
Check every number around the lettered tiles.
D
D touches a 0, so it is empty; the numbers force gems under A, B and C.