?
Puzzle 1
How many cubic feet of earth are removed …
… to make a hole 4 feet wide by 7 feet long by 2 feet deep?
?
Puzzle 2
You have a very large number of generic plastic building blocks, each in the shape of a cube.
Think about how many cubes you would need in order to construct a giant cube with 16 small cubes along each edge.
If you were to then remove the outside layer, how many small cubes would you have removed?
??
Puzzle 3
Using all of the letters A to Z, each once only, complete these common words. There are currently 5 different answers, can you find them all?
-e-el
b-d
s-i-l
swa--
fo-
-er-y
a-ur-
-u-dy
-uo-e
-e-a-e
ed--
sc-r-y
l-p
--lls
??
Puzzle 4
What number comes next in this sequence:
914275 · 94275 · 9475 · 975 · ?