Optical illusions knowledge map

The current map is based on 301219 answers.

Number of active questions per language

language
number of questions
Russian language (оптические иллюзии)  
5
Polish language (złudzenia optyczne, iluzje optyczne)  
8
Polish language (złudzenia optyczne, iluzje optyczne)  
13
English language (optical illusions)  
11
Ukrainian language (оптичні ілюзії)  
5

Results

Country
Results
answers
flagBurkina Faso
100%
100%
19
flagAlgeria
100%
100%
8
flagMadagascar
100%
100%
7
flagArmenia
100%
100%
5
flagSomalia
100%
100%
4
flagBahamas
100%
100%
3
flagRepublic of the Congo
100%
100%
2
flagIraq
100%
100%
1
flagFiji
100%
100%
1
flagVenezuela
100%
100%
1
flagCosta Rica
100%
100%
1
flagHungary
91%
91%
56
flagMontenegro
91%
91%
24
flagFinland
87%
87%
365
flagAfghanistan
84%
84%
146
flagMalta
84%
84%
25
flagUruguay
83%
83%
78
flagZimbabwe
83%
83%
12
flagGuatemala
83%
83%
6
flagBrazil
82%
82%
35
flagOman
82%
82%
34
flagEcuador
81%
81%
11
flagJapan
80%
80%
25
flagArgentina
80%
80%
25
flagPanama
80%
80%
25
flagGeorgia
80%
80%
21
flagNamibia
80%
80%
21
flagColombia
80%
80%
5
flagLebanon
79%
79%
39
flagEgypt
78%
78%
79
flagKazakhstan
77%
77%
45
flagItaly
76%
76%
708
flagSpain
76%
76%
449
flagRomania
76%
76%
103
flagIsrael
76%
76%
100
flagBulgaria
75%
75%
124
flagPortugal
75%
75%
69
flagEstonia
75%
75%
28
flagMoldova
75%
75%
4
flagAustria
74%
74%
258
flagCroatia
74%
74%
227
flagNew Zealand
73%
73%
79
flagKenya
72%
72%
22
flagChile
72%
72%
11
flagNorway
71%
71%
657
flagCzech Republic
71%
71%
280
flagthe United Arab Emirates
71%
71%
259
flagJamaica
71%
71%
14
flagthe United States
70%
70%
9760
flagGermany
70%
70%
3424
flagPoland
69%
69%
266443
flagthe United Kingdom
69%
69%
6769
flagAustralia
69%
69%
539
flagPakistan
69%
69%
184
flagTurkey
69%
69%
65
flagKuwait
69%
69%
55
flagSlovenia
69%
69%
13
flagFrance
68%
68%
835
flagSerbia
68%
68%
19
flagLithuania
67%
67%
209
flagRussia
66%
66%
231
flagthe Netherlands
65%
65%
843
flagSwitzerland
65%
65%
176
flagMexico
65%
65%
96
flagIran
65%
65%
69
flagMongolia
65%
65%
40
flagUganda
65%
65%
20
flagRepublic of Ireland
64%
64%
886
flagCanada
64%
64%
802
flagUU
64%
64%
420
flagDenmark
64%
64%
369
flagMalaysia
64%
64%
165
flagIndonesia
64%
64%
150
flagSlovakia
64%
64%
74
flagBelarus
64%
64%
45
flagUkraine
62%
62%
212
flagCuba
61%
61%
21
flagBosnia and Herzegovina
61%
61%
18
flagIndia
60%
60%
2024
flagBelgium
60%
60%
288
flagMyanmar
60%
60%
10
flagCôte d'Ivoire
60%
60%
10
flagSweden
59%
59%
244
flagGreece
59%
59%
142
flagSingapore
59%
59%
27
flagSouth Africa
58%
58%
144
flagChina
58%
58%
51
flagThailand
58%
58%
39
flagBangladesh
57%
57%
21
flagSri Lanka
57%
57%
19
flagGhana
57%
57%
7
flagIceland
56%
56%
48
flagMorocco
56%
56%
16
flagSouth Korea
55%
55%
78
flagNepal
54%
54%
22
flagthe Philippines
53%
53%
278
flagHK
53%
53%
13
flagRwanda
51%
51%
56
flagLatvia
50%
50%
10
flagCyprus
50%
50%
8
flagHonduras
50%
50%
2
flagJE
50%
50%
2
flagQatar
47%
47%
17
flagAlbania
46%
46%
41
flagVietnam
45%
45%
22
flagTogo
41%
41%
12
flagLuxembourg
40%
40%
10
flagEthiopia
40%
40%
5
flagNigeria
33%
33%
33
flagAzerbaijan
32%
32%
34
flagTaiwan
25%
25%
4
flagEritrea
0%
0%
2
flagSwaziland
0%
0%
2
flagRepublic of Macedonia
0%
0%
1
flagSuriname
0%
0%
1
flagJordan
0%
0%
1
flagCambodia
0%
0%
1
flagUzbekistan
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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