THE SOLUTION:
The missing letter is “H.”
The letters represent polygon shapes, starting with the one with the fewest number of sides (a triangle) and increasing from there.
The sequence stars with T (triangle), then Q (quadrilateral), P (pentagon), H (hexagon), H (heptagon, the missing one), O (octagon), N (nonagon), and so on.
Have a great weekend, everyone!
World War I Centennial: Germany Ramps Up and Albanians Take Up Arms
Why Do Paper Cuts Hurt So Much?
Can You Really Go Blind Staring at a Solar Eclipse?
- subscribe /
- give a gift /
- subscriber services /
- back issues /
- terms of service /
- about /
- contact us /
- write for us /
- ad info /
- press /
- privacy policy /
- rss /
© 2012 Mental Floss Inc. All Rights Reserved. Mental Floss is a registered trademark owned by Felix Dennis. mentalfloss.com is a trademark owned by Felix Dennis.
Disclaimer: All submissions made to mental_floss become the property of Mental Floss Inc and may be used without further permission by the submitter and without compensation to the submitter. If you do not agree to these terms, please do not submit anything to mental_floss.
