Clue 1
These stamps seem awful square...
Clue 2
And they all seem to depict roots...
Solution
Each square stamp shows a different kind of root, and a perfect square number. Take the square root of each stamp, and in order from left to right they read '853'.
Clue 3
Square stamps, showing roots...Square...Roots...
Clue 4
Three stamps for three digits.
Clue 1
Is there anything awry amongst these digits of pi?
Clue 2
So many digits...are they all correct?
Solution
Some digits of Pi have been replaced by other numbers! In order, translated alpha-numerically, the substituted numbers spell 'Numerology'.
Clue 3
Some of the digits shown seem a little off...perhaps a comparison is in order.
Clue 4
Check carefully, some changes are two digits at a time.
Clue 5
Now that you know what numbers are off, can you turn that into a word?
Clue 1
Simpler than it may seem...
Clue 2
Remember, every line counts.
Solution
The sketched lines and shapes correspond via number of lines to their numeric equivalents in the alphabet. Left to right, they spell 'Baghdad'.
Clue 3
The answer will shape-up, letter by letter.
Clue 4
Seven sketches, seven letters...
Clue 5
D seems like a very square sort of letter.
Clue 1
These stamps seem awful square...
Clue 2
And they all seem to depict roots...
Solution
Each square stamp shows a different kind of root, and a perfect square number. Take the square root of each stamp, and in order from left to right they read '853'.
Clue 3
Square stamps, showing roots...Square...Roots...
Clue 4
Three stamps for three digits.