Optical illusions knowledge map

The current map is based on 441329 answers.

Number of active questions per language

language
number of questions
English language (optical illusions)  
15
Polish language (iluzje optyczne, złudzenia optyczne)  
14
Russian language (оптические иллюзии)  
6
Polish language (iluzje optyczne, złudzenia optyczne)  
10
Italian language (illusioni ottiche)  
1
German language (optische Täuschungen)  
11
Ukrainian language (оптичні ілюзії)  
6

Results

Country
Results
answers
flagDominican Republic
100%
100%
6
flagMontenegro
100%
100%
3
flagHaiti
100%
100%
3
flagUruguay
100%
100%
2
flagSudan
100%
100%
2
flagFiji
100%
100%
1
flagVenezuela
100%
100%
1
flagRepublic of Macedonia
100%
100%
1
flagTajikistan
100%
100%
1
flagAngola
100%
100%
1
flagEritrea
100%
100%
1
flagBotswana
100%
100%
1
flagArgentina
86%
86%
15
flagMalta
83%
83%
12
flagGuatemala
83%
83%
6
flagMozambique
80%
80%
5
flagKenya
79%
79%
58
flagSlovenia
79%
79%
29
flagItaly
78%
78%
133
flagLithuania
77%
77%
45
flagCroatia
76%
76%
51
flagHungary
75%
75%
33
flagOman
75%
75%
12
flagIraq
74%
74%
47
flagSweden
74%
74%
39
flagCzech Republic
73%
73%
89
flagDenmark
73%
73%
56
flagBosnia and Herzegovina
73%
73%
34
flagFrance
72%
72%
110
flagMexico
72%
72%
58
flagIsrael
72%
72%
54
flagSri Lanka
72%
72%
11
flagthe Netherlands
71%
71%
212
flagBrazil
71%
71%
42
flagJapan
71%
71%
28
flagTanzania
71%
71%
14
flagPortugal
70%
70%
70
flagMorocco
70%
70%
20
flagLuxembourg
69%
69%
82
flagBulgaria
69%
69%
69
flagRomania
69%
69%
68
flagEstonia
69%
69%
39
flagPoland
68%
68%
420491
flagGermany
67%
67%
860
flagthe United States
66%
66%
8320
flagGreece
66%
66%
186
flagSwitzerland
66%
66%
112
flagNew Zealand
66%
66%
84
flagSerbia
66%
66%
45
flagthe United Kingdom
65%
65%
2153
flagAustralia
65%
65%
575
flagAustria
65%
65%
120
flagKazakhstan
65%
65%
47
flagNepal
65%
65%
44
flagAzerbaijan
65%
65%
38
flagEgypt
64%
64%
85
flagKuwait
64%
64%
45
flagJamaica
64%
64%
14
flagCanada
63%
63%
541
flagUganda
63%
63%
19
flagIndonesia
62%
62%
121
flagBelarus
62%
62%
67
flagTurkey
62%
62%
43
flagUnknown
61%
61%
308
flagMalaysia
61%
61%
172
flagRussia
60%
60%
260
flagPakistan
60%
60%
135
flagNorway
60%
60%
120
flagSingapore
60%
60%
68
flagCambodia
60%
60%
15
flagLatvia
60%
60%
10
flagUkraine
59%
59%
458
flagFinland
59%
59%
22
flagGeorgia
58%
58%
36
flagColombia
57%
57%
7
flagSouth Africa
56%
56%
112
flagChina
56%
56%
64
flagSouth Korea
55%
55%
94
flagSpain
55%
55%
92
flagAlbania
55%
55%
70
flagIndia
54%
54%
2504
flagthe United Arab Emirates
54%
54%
151
flagLebanon
54%
54%
53
flagRepublic of Ireland
53%
53%
162
flagIceland
53%
53%
30
flagSlovakia
53%
53%
15
flagUzbekistan
53%
53%
13
flagGhana
53%
53%
13
flagIran
50%
50%
40
flagBangladesh
50%
50%
32
flagVietnam
50%
50%
14
flagCyprus
50%
50%
4
flagChile
50%
50%
4
flagSomalia
50%
50%
2
flagMaldives
50%
50%
2
flagMoldova
50%
50%
2
flagMauritius
50%
50%
2
flagHonduras
50%
50%
2
flagthe Philippines
49%
49%
362
flagNigeria
48%
48%
66
flagBelgium
48%
48%
58
flagRwanda
45%
45%
60
flagNamibia
44%
44%
9
flagQatar
40%
40%
54
flagTurkmenistan
40%
40%
5
flagTunisia
36%
36%
11
flagCuba
33%
33%
6
flagSaudi Arabia
33%
33%
6
flagTaiwan
33%
33%
3
flagKG
16%
16%
6
flagThailand
14%
14%
7
flagArmenia
0%
0%
3
flagAfghanistan
0%
0%
3
flagBahamas
0%
0%
2
flagPapua New Guinea
0%
0%
2
flagJordan
0%
0%
1
flagGuyana
0%
0%
1
flagSeychelles
0%
0%
1
flagLesotho
0%
0%
1
Countries with less than 250 answers are not shown. Show all data
A more detailed analysis is available: Global optical illusions knowledge test
The results are released under the CC-attribution license. You may freely use it and re-distribute, but you must provide the link back to this page