Is it permissible for men to wear silver bracelets and necklaces?

Men are allowed to wear silver rings, but they aren`t allowed to wear bracelets and necklaces because they imitate women by doing so.

 Reciting the Prophetic narration is permissible as many scholars used to, since in principle, the rulings of recitation have to be observed while speaking Arabic language.

Is it permissible to offer the Eid sacrifice in a non-Muslim country?

Eid sacrifice is permissible anywhere, and Islamic Sharia hasn`t determined that it should be in an Islamic country, but poor Muslims should be given a share in order for it to be valid since it is an act of worship. A portion of that Eid sacrifice should be given at least to one poor Muslim, and if that wasn`t possible then the one offering it should consume it along with his family.

What is the ruling on using bank cards such as Visa and MasterCard ?

It is permissible to use such cards in accordance with the following conditions : 1-The issuing body does not stipulate collecting interest upon late payments. 2-The merchant does not increase the price of the goods due to an increase in the commission collected from him by the card issuer.3-The purchased item(s) should not be gold , silver or currency in case the card is not covered