Are you genius? Solve this brainteaser and check out.
This problem can be solved by pre-school children in five to ten minutes, by programmers in an hour and by people with higher education…well, check it yourself!
Answer is 2. We are counting circles in each given number string. Like 8806 has 6 circles(2 in each 8, 1 in 0 , 1 in 6) likewise 2581 has 2 circles (8 has 2)