Did you know that as of 14th December there are 2.1 Lac 18-25 female from India on India and that Denmark has more females on Facebook than India? Well, there are if you were to believe a tool developed by Nick ONiel. Presenting an online tool to check demographics of Facebook users:

Facebook demographic statistics tool – Compare stats of up to 3 countries simultaneously, based on age groups & sex.

Indian females v/s Denmark females active on Facebook:

Apparently there are 3,000 men over the age of 60 from India & here is the chart of male & female in the age group of 18-25 for India: