Optical illusions knowledge map
The current map is based on 538645 answers.
Number of active questions per language
language
number of questions
Italian language (illusioni ottiche)
1
German language (optische Täuschungen)
11
English language (optical illusions)
15
Polish language (iluzje optyczne, złudzenia optyczne)
14
Russian language (оптические иллюзии)
6
Ukrainian language (оптичні ілюзії)
6
Polish language (iluzje optyczne, złudzenia optyczne)
11
Results
Country
Results
answers
Vatican City
100%
25
Zimbabwe
100%
6
Haiti
100%
3
Puerto Rico
100%
2
Palestine
100%
2
Sudan
100%
2
Eritrea
100%
2
Equatorial Guinea
100%
1
Venezuela
100%
1
Angola
100%
1
Niger
100%
1
Nicaragua
100%
1
Syria
100%
1
Seychelles
92%
25
Mozambique
87%
8
Papua New Guinea
85%
48
Guatemala
85%
7
Dominican Republic
81%
16
Montenegro
80%
5
Slovenia
77%
36
Bosnia and Herzegovina
75%
49
Iraq
75%
49
Uruguay
75%
4
Czech Republic
74%
295
Portugal
73%
116
Luxembourg
72%
154
Denmark
72%
126
Malta
72%
22
France
71%
384
Lithuania
71%
94
Thailand
71%
84
Vietnam
71%
71
Oman
71%
49
Argentina
71%
28
Iceland
70%
82
Hungary
70%
40
Singapore
69%
338
Croatia
69%
133
Mexico
69%
89
Paraguay
69%
53
Poland
68%
496604
Australia
67%
1098
the Netherlands
67%
527
Switzerland
66%
475
Norway
66%
210
Zambia
66%
3
Somalia
66%
3
Mauritius
66%
3
the United States
65%
11039
Indonesia
65%
180
Bulgaria
65%
129
Brazil
65%
64
Austria
64%
850
Greece
64%
505
Israel
64%
176
Kenya
64%
87
Mongolia
64%
17
the United Kingdom
63%
4225
Spain
63%
212
Albania
63%
118
Turkey
63%
85
Kuwait
63%
46
Finland
63%
44
Uganda
63%
19
Germany
62%
5167
Egypt
62%
157
Sweden
62%
118
Canada
61%
893
Unknown
61%
310
New Zealand
61%
152
Serbia
61%
55
Malaysia
60%
238
China
60%
108
Colombia
60%
10
Republic of Ireland
58%
453
South Africa
58%
183
Estonia
58%
129
Japan
58%
68
Republic of Macedonia
58%
17
Jamaica
58%
17
Cambodia
58%
17
Tunisia
58%
17
Taiwan
58%
12
Belgium
57%
195
Romania
57%
113
Lebanon
57%
82
Ukraine
56%
1528
Kazakhstan
56%
198
Morocco
56%
25
Turkmenistan
56%
23
Belarus
55%
273
South Korea
55%
118
Latvia
54%
35
India
53%
4428
Russia
53%
1431
Italy
53%
581
Pakistan
53%
199
Nepal
53%
78
Slovakia
52%
42
Peru
51%
105
Bangladesh
51%
62
the Philippines
50%
514
Armenia
50%
67
Moldova
50%
20
Fiji
50%
6
Myanmar
50%
4
Bolivia
50%
2
North Korea
50%
2
Bahrain
50%
2
Botswana
50%
2
Azerbaijan
49%
71
Cyprus
48%
25
Saudi Arabia
47%
21
the United Arab Emirates
46%
307
Iran
46%
58
Qatar
45%
114
Rwanda
45%
81
Georgia
45%
57
Tanzania
44%
25
Sri Lanka
43%
37
Nigeria
42%
150
Uzbekistan
42%
92
Tajikistan
42%
14
Namibia
41%
12
Ethiopia
40%
10
Jordan
40%
10
Honduras
40%
5
Ghana
38%
47
KG
36%
47
Chile
33%
6
Cuba
33%
6
Trinidad and Tobago
33%
3
Maldives
33%
3
Ecuador
25%
4
Afghanistan
0%
3
Bahamas
0%
3
Dominica
0%
1
Mali
0%
1
Guyana
0%
1
Lesotho
0%
1
Yemen
0%
1
Bhutan
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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