According to the Watchtower, women must be submissive to men and they are not built for leadership roles like men are.
To prove their beliefs, they point to the teachings of Apostle Paul. 1 Cor: 14:34,35; 1 Timothy 2:12.
Even though the theology of the Apostle Paul differed from the theology of Jesus, Jehovah's Witnesses believe that Christians must follow the 'entire Bible' rather than Jesus alone. 2 John 1:9
Women are not treated as equals in the JW faith. At congregation meetings they are restricted in what they can do and say. In certain situations women must wear head coverings to symbolize their submissive and subordinate position in the Watchtower Society.
The Apostle Paul says, 'women should remain silent in the churches. They are not allowed to speak, but must be in submission, as the Law says. If they want to inquire about something, they should ask their own husbands at home; for it is disgraceful for a woman to speak in the church.' 1 Cor. 14:34,35
Here's some quotes from the Watchtower (the official magazine of the Jehovah's Witnesses). Taken from WT, Mar 1, 2006, Questions from Readers, 'What did the apostle Paul mean when he stated that women should “keep silent in the congregations”?'
The Watchtower says, 'sisters declare their hope and encourage others during congregation meetings by giving well-thought-out comments when invited to do so and by accepting assignments to share in demonstrations or student talks.'
'Hence, Christian women “keep silent” by refraining from trying to assume the role of a male and instruct the congregation. They do not raise argumentative questions that could challenge the authority of those who teach.'
According to Samuel Herd, member of the Governing Body of Jehovah's Witnesses, women have smaller brains and thus not built for leadership roles like men are.