My best guess at this age and from the photos you've posted would be:
1 looks like a pullet
2 looks like a cockerel
3 look like a cockerel
4 looks like a pullet
5 looks like a pullet
6 looks like a cockerel
7 looks like a cockerel
1 looks like a pullet
2 looks like a cockerel
3 look like a cockerel
4 looks like a pullet
5 looks like a pullet
6 looks like a cockerel
7 looks like a cockerel