The tux, the flowers for the groom and groomsmen, the wedding breakfast and the honeymoon.
BUT!!!
It's considered "good form" to offer to assist with other expenses, since the groom's family gets off pretty easy compared to what the brides family usually pays.
Traditionally it is the Groom's family who will pay for the rehearsal dinner.
It depends upon the family, but traditionally, (in the West) the bride's family paid for the wedding.
Traditionally, the groom's family would cover the formal wear for the groom (plus his father's and his mother's attire), the bride's and bridesmaid's bouquets, corsages for mothers and grandmothers and boutonnieres for the groomsmen. They also would pay for the rehearsal dinner, the clergy's fee, transportation after the reception, and (sometimes) the honeymoon.
Traditionally, it is up to the parents of the bride to pay for the wedding. However, they may receive help from the groom's family if it is offered.
Traditionally the Groom pays for the wedding. It shows that he is ready to take on the responsibilities in his future. It is also a way to prove to his future in-laws that he is able to take care of their daughter.
Uncooked rice
Yes, traditionally one side of the church is filled with family and guests of the bride and her parents, and the other side with the family and guests of the Groom .
Taking care of each other.
It all depends on the bride who sets the theme, formality, colors of the wedding, etc. It is a formal wedding, a long gown is customary and the colors or colors depends on the color motif of the wedding. It it is a semi formal or garden type wedding, a shorter dress like a tealength or kneelength is appropriate with a less heavy fabric. It all truly depends on the bride and her wishes. And you may buy a dress at Promhope.com
The Groom's Family; traditionally, the groom's father. The groom's family pays for the knocking ceremony, dowries and all fees that result from the traditional ceremony (Ghanaian tradition). The brides family normally prepares the food, drinks, music, etc. for the reception. The "white wedding ceremony" normally follows the traditional ceremony; that's if the couple chooses to do this. In Ghana, the groom pays for this part of the ceremony also; as the saying goes "Who's marrying who" (translated from Twi). Nowadays however, the bride and her family can choose to contribute financially depending on their relationship with the groom. Most of the time, they don't; but some do, just to help their daughter out.
In general, on the right-hand side of the bride.
There's NO tradition involved, since every wedding is different.