Hardest Series Teasers
Series teasers are where you try to complete the sequence of a series of letters, numbers or objects.
These brain teasers have been voted as the most difficult. Only teasers with at least 20 votes are shown. Good luck solving them!
|
Title |
Popularity |
Difficulty |
Submitted |
|
241 |
G, G, G... |
|
|
09/03/06 |
by settra626 |
242 |
1 5 9 15 ... |
|
|
05/03/03 |
by superadam |
243 |
A Comedy of Errors? |
|
|
01/13/07 |
by jazzmusician46 |
244 |
Upgrade |
|
|
08/22/07 |
by cnmne |
245 |
Fourths |
|
|
01/28/06 |
by Question_Mark |
246 |
H, Be, F, S, Mn, Kr, In, Gd, Tl, ? |
|
|
12/05/05 |
by lips |
247 |
Numbers 2 |
|
|
02/22/06 |
by Princeford93 |
248 |
Choose Your Sides Wisely |
|
|
01/04/07 |
by Writer_fighter |
249 |
15, 20, 20, 6, 6, 19 |
|
|
09/14/02 |
by doggyxp |
250 |
Almost Looks Like RAM Amounts |
|
|
02/13/05 |
by castanz |
251 |
4, 4, 1, 2, 1 ... |
|
|
02/04/01 |
by cruiser |
252 |
1, 3, 5, 9, 12? |
|
|
07/20/02 |
by mad-ade |
253 |
1, 5, 9, 15, ? |
|
|
06/28/02 |
by im_para_noid |
254 |
M-U-D-R-A-D |
|
|
07/11/07 |
by King_of_Smart |
255 |
It's As Easy As 16 Fingers |
|
|
10/22/06 |
by calmsavior |
Follow Braingle!