Optical illusions knowledge map

The current map is based on 505015 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
flagVatican City
100%
100%
25
flagUruguay
100%
100%
3
flagZimbabwe
100%
100%
3
flagMontenegro
100%
100%
3
flagHaiti
100%
100%
3
flagEritrea
100%
100%
2
flagPalestine
100%
100%
2
flagSudan
100%
100%
2
flagPuerto Rico
100%
100%
2
flagVenezuela
100%
100%
1
flagAngola
100%
100%
1
flagPapua New Guinea
92%
92%
26
flagSeychelles
92%
92%
25
flagMozambique
87%
87%
8
flagGuatemala
85%
85%
7
flagDominican Republic
81%
81%
16
flagSlovenia
80%
80%
31
flagCzech Republic
75%
75%
201
flagVietnam
75%
75%
57
flagIraq
75%
75%
49
flagBosnia and Herzegovina
75%
75%
48
flagFiji
75%
75%
4
flagArgentina
74%
74%
27
flagFrance
73%
73%
345
flagPortugal
73%
73%
95
flagKenya
73%
73%
73
flagLithuania
72%
72%
79
flagHungary
72%
72%
36
flagMalta
72%
72%
22
flagCroatia
71%
71%
98
flagThailand
70%
70%
68
flagSweden
70%
70%
64
flagOman
70%
70%
44
flagthe Netherlands
69%
69%
447
flagAustria
69%
69%
443
flagSingapore
69%
69%
316
flagMexico
69%
69%
83
flagParaguay
69%
69%
52
flagMongolia
69%
69%
13
flagPoland
68%
68%
472074
flagSwitzerland
68%
68%
277
flagLuxembourg
68%
68%
93
flagJapan
68%
68%
47
flagAustralia
67%
67%
999
flagIsrael
67%
67%
132
flagIceland
67%
67%
71
flagBrazil
67%
67%
59
flagEthiopia
66%
66%
6
flagMauritius
66%
66%
3
flagSomalia
66%
66%
3
flagthe United States
65%
65%
9936
flagGreece
65%
65%
494
flagFinland
65%
65%
41
flagBulgaria
64%
64%
102
flagDenmark
64%
64%
77
flagKuwait
64%
64%
45
flagGermany
63%
63%
2757
flagCanada
63%
63%
707
flagNorway
63%
63%
160
flagEgypt
63%
63%
146
flagIndonesia
63%
63%
145
flagUganda
63%
63%
19
flagthe United Kingdom
62%
62%
3520
flagTurkey
62%
62%
81
flagNepal
62%
62%
53
flagJamaica
62%
62%
16
flagItaly
61%
61%
348
flagUnknown
61%
61%
309
flagMalaysia
61%
61%
210
flagSerbia
61%
61%
54
flagMorocco
60%
60%
23
flagUkraine
59%
59%
1165
flagSpain
58%
58%
144
flagNew Zealand
58%
58%
122
flagRomania
58%
58%
94
flagEstonia
58%
58%
73
flagLebanon
58%
58%
65
flagAzerbaijan
58%
58%
50
flagCambodia
58%
58%
17
flagRepublic of Macedonia
58%
58%
17
flagRepublic of Ireland
57%
57%
387
flagBelarus
57%
57%
187
flagSouth Africa
57%
57%
143
flagBelgium
57%
57%
129
flagAlbania
57%
57%
101
flagKazakhstan
57%
57%
100
flagChina
57%
57%
97
flagArmenia
56%
56%
51
flagTurkmenistan
56%
56%
23
flagRussia
55%
55%
757
flagPakistan
55%
55%
179
flagSouth Korea
55%
55%
118
flagColombia
55%
55%
9
flagIndia
53%
53%
3755
flagthe United Arab Emirates
53%
53%
193
flagBangladesh
51%
51%
41
flagSlovakia
51%
51%
37
flagGhana
51%
51%
33
flagthe Philippines
50%
50%
449
flagIran
50%
50%
46
flagLatvia
50%
50%
16
flagMoldova
50%
50%
14
flagSaudi Arabia
50%
50%
8
flagTajikistan
50%
50%
8
flagMyanmar
50%
50%
4
flagBotswana
50%
50%
2
flagNorth Korea
50%
50%
2
flagMaldives
50%
50%
2
flagGeorgia
48%
48%
54
flagRwanda
47%
47%
71
flagSri Lanka
46%
46%
30
flagQatar
45%
45%
114
flagNamibia
45%
45%
11
flagTanzania
44%
44%
25
flagUzbekistan
44%
44%
25
flagNigeria
43%
43%
93
flagTaiwan
42%
42%
7
flagHonduras
40%
40%
5
flagPeru
38%
38%
50
flagTunisia
36%
36%
11
flagChile
33%
33%
6
flagCuba
33%
33%
6
flagCyprus
28%
28%
7
flagKG
16%
16%
18
flagAfghanistan
0%
0%
3
flagBahamas
0%
0%
3
flagJordan
0%
0%
1
flagMali
0%
0%
1
flagZambia
0%
0%
1
flagLesotho
0%
0%
1
flagTrinidad and Tobago
0%
0%
1
flagGuyana
0%
0%
1
flagYemen
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
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