The Grey Labyrinth is a collection of puzzles, riddles, mind games, paradoxes and other intellectually challenging diversions. Related topics: puzzle games, logic puzzles, lateral thinking puzzles, philosophy, mind benders, brain teasers, word problems, conundrums, 3d puzzles, spatial reasoning, intelligence tests, mathematical diversions, paradoxes, physics problems, reasoning, math, science.

Snail · Daedalian Member

It's a little like a number series, but not quite. Guess the next letter!

o, t, t, f, s, s, ?

Chuck · Daedalian Member

You left out an "f".

Snail · Daedalian Member

Hi Chuck. So I did! But I did it on purpose. It really is a series. OK I lied, it's not at all like a number series. It's more like "What letter comes next in this series?"

impossibleroot · Hi-Keeba!

tomcooper · Icarian Member

isnt' this a really old one?

e

Snail · Daedalian Member

Hi tomcooper.

No, it's not e, but that's a good guess. At least someone is trying to guess the letter.

mathgrant · A very tilted cell member

a
b
c
d
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z

mole · Subterranean Member

s? cute, a nice combination of two puzzles

Snail · Daedalian Member

s is right, you solved it mole!

Marvin · Pseudo-Yank

Ok, I'll bite. I thought it'd be 'e', where does 's' come from?

Snail · Daedalian Member

Marvin, s is the last letter of the word "series". As mole said, it's just two old puzzles mixed up.

ralphmerridew · Daedalian Member

Chuck · Daedalian Member

They're the last letters in the words in the title of this thread.