Solution:

1726

A) 1345 sum of digits(13, prime)
B) 1754 sum of digits(17, prime)
C) 1726 sum of digits(16, not prime)
D) 1235 sum of digits(11, prime)

Solution:

Image C

as this is the only image of left hand.

Solution:

100/77 (excpet this , in all expression number pattern is repeating)

100/55 (1.818181818)
100/66 (1.515151515)
100/77 (1.298701299)
100/88 (1.136363636)

Solution:

Brazil

Rest all are European countries

Solution:

Star

Rest All Are Palindrome.

Solution:

September

(Rest have 31 days)