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 |
|
91 |
-1, 0, 1, 2, 9, ? |
|
|
11/26/05 |
by letmeforget |
92 |
Earth 2 |
|
|
04/02/07 |
by cnmne |
93 |
1, 2, 1.5, 1.666... |
|
|
11/12/01 |
by mrice |
94 |
7 23 ... |
|
|
06/04/02 |
by bobbrt |
95 |
1, 2, 2, 3, 2, 4, 2, 4, 3, 4, _, _, _ |
|
|
09/13/08 |
by shenqiang |
96 |
2, 5, 7, 10, 13, 15, 18, 20... |
|
|
05/13/06 |
by shenqiang |
97 |
2, 5, 5, 4, 5, 6, 3, 7, __ |
|
|
12/08/02 |
by electronjohn |
98 |
Size Does Matter |
|
|
09/10/07 |
by cnmne |
99 |
No F's |
|
|
03/28/03 |
by griphook |
100 |
Paragraph Series |
|
|
03/10/07 |
by calmsavior |
101 |
How Well Do You Know Yourself? |
|
|
01/26/07 |
by Writer_fighter |
102 |
Audubon Society |
|
|
09/20/02 |
by dewtell |
103 |
Dum-de-Dum |
|
|
04/11/07 |
by jazzmusician46 |
104 |
Can You Figure It? |
|
|
07/05/06 |
by fishmed |
105 |
1,1,1,1,1.... |
|
|
04/23/02 |
by comet16 |
Follow Braingle!