India
Ans: D
In each line take the difference between the numbers of black and white dots respectively to arrive at the number and colour of dots in the final square.
Tibetan
Ans: D
In each row across, the second square is a combination of all the lines and symbols in the other three squares.
Greece
Ans: C
Add the contents of the first two boxes to obtain the contents of the third box, except when two lines or symbols appear in the same position in the first two boxes, in which case they are cancelled out.
Kiribati
Ans: B
Looking across and down the contents of the first two tiles are combined to produce the contents of the end tile.