solutions are given below
1.
man or woman...think deeply..look at both the pictures
2.
this is a famous optical illusion..can you get which one is male and which one is female
3.
this is a famous picture circulating around the whole web in dating sites,etc
can you tell me whether is it a boy or a girl?
4.
hmmm..a pretty simple one
1.1st one is male..2nd is female
2.try guessing it in the comments section
3.try guessing
4.female