Optical illusions knowledge map

The current map is based on 492284 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
Italian language (illusioni ottiche)  
1
German language (optische Täuschungen)  
11
Ukrainian language (оптичні ілюзії)  
6
Polish language (iluzje optyczne, złudzenia optyczne)  
11

Results

Country
Results
answers
flagDominican Republic
100%
100%
6
flagHaiti
100%
100%
3
flagUruguay
100%
100%
3
flagMontenegro
100%
100%
3
flagPuerto Rico
100%
100%
2
flagPalestine
100%
100%
2
flagZimbabwe
100%
100%
2
flagSudan
100%
100%
2
flagEritrea
100%
100%
2
flagAngola
100%
100%
1
flagVenezuela
100%
100%
1
flagMozambique
87%
87%
8
flagGuatemala
83%
83%
6
flagSlovenia
80%
80%
30
flagKenya
79%
79%
68
flagLithuania
75%
75%
72
flagIraq
75%
75%
49
flagBosnia and Herzegovina
74%
74%
43
flagHungary
74%
74%
35
flagArgentina
74%
74%
27
flagCzech Republic
73%
73%
175
flagFrance
72%
72%
296
flagSweden
72%
72%
61
flagMalta
72%
72%
22
flagIsrael
71%
71%
119
flagCroatia
71%
71%
98
flagMexico
71%
71%
81
flagTanzania
71%
71%
14
flagPortugal
70%
70%
74
flagSingapore
69%
69%
281
flagParaguay
69%
69%
52
flagOman
69%
69%
13
flagPoland
68%
68%
462042
flagthe Netherlands
68%
68%
383
flagAustria
68%
68%
365
flagSwitzerland
68%
68%
236
flagLuxembourg
68%
68%
93
flagBrazil
68%
68%
45
flagJapan
68%
68%
45
flagAustralia
67%
67%
975
flagIceland
67%
67%
71
flagEgypt
66%
66%
106
flagThailand
66%
66%
53
flagVietnam
66%
66%
33
flagMoldova
66%
66%
9
flagEthiopia
66%
66%
6
flagMauritius
66%
66%
3
flagSomalia
66%
66%
3
flagthe United States
65%
65%
9670
flagCanada
64%
64%
692
flagGreece
64%
64%
477
flagNorway
64%
64%
154
flagBulgaria
64%
64%
102
flagDenmark
64%
64%
77
flagKuwait
64%
64%
45
flagGermany
63%
63%
2303
flagItaly
63%
63%
293
flagIndonesia
63%
63%
140
flagMorocco
63%
63%
22
flagUganda
63%
63%
19
flagthe United Kingdom
62%
62%
3279
flagTurkey
62%
62%
61
flagNepal
62%
62%
53
flagFinland
62%
62%
35
flagJamaica
62%
62%
16
flagUnknown
61%
61%
309
flagKazakhstan
61%
61%
89
flagEstonia
61%
61%
65
flagSerbia
61%
61%
54
flagMalaysia
60%
60%
197
flagLebanon
60%
60%
63
flagUkraine
59%
59%
990
flagRussia
58%
58%
577
flagBelarus
58%
58%
145
flagRomania
58%
58%
93
flagCambodia
58%
58%
17
flagRepublic of Macedonia
58%
58%
17
flagBelgium
57%
57%
123
flagNew Zealand
57%
57%
121
flagTajikistan
57%
57%
7
flagColombia
57%
57%
7
flagRepublic of Ireland
56%
56%
278
flagSouth Africa
56%
56%
141
flagSpain
56%
56%
125
flagAlbania
56%
56%
99
flagArmenia
56%
56%
51
flagGhana
56%
56%
30
flagTurkmenistan
56%
56%
23
flagSouth Korea
55%
55%
118
flagAzerbaijan
55%
55%
45
flagPakistan
54%
54%
177
flagChina
54%
54%
91
flagIndia
53%
53%
3455
flagthe United Arab Emirates
52%
52%
189
flagGeorgia
52%
52%
50
flagthe Philippines
50%
50%
428
flagSlovakia
50%
50%
36
flagSri Lanka
50%
50%
28
flagLatvia
50%
50%
16
flagSaudi Arabia
50%
50%
8
flagMyanmar
50%
50%
4
flagBotswana
50%
50%
2
flagNorth Korea
50%
50%
2
flagMaldives
50%
50%
2
flagFiji
50%
50%
2
flagIran
48%
48%
45
flagBangladesh
48%
48%
39
flagRwanda
47%
47%
71
flagUzbekistan
47%
47%
19
flagNigeria
46%
46%
83
flagQatar
45%
45%
114
flagNamibia
45%
45%
11
flagHonduras
40%
40%
5
flagChile
40%
40%
5
flagTunisia
36%
36%
11
flagTaiwan
33%
33%
6
flagCuba
33%
33%
6
flagCyprus
28%
28%
7
flagKG
20%
20%
15
flagAfghanistan
0%
0%
3
flagBahamas
0%
0%
3
flagPapua New Guinea
0%
0%
2
flagLesotho
0%
0%
1
flagGuyana
0%
0%
1
flagSeychelles
0%
0%
1
flagZambia
0%
0%
1
flagMali
0%
0%
1
flagYemen
0%
0%
1
flagTrinidad and Tobago
0%
0%
1
flagJordan
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