Although there is not much you can do to increase sperm count it is important to avoid those things that can cause a drop in sperm count. These include drinking alcohol and masturbation. Both of these can cause major drops in sperm count. (I'm a doctor)
Grapes and drink vinegar
No.
Drinking soft drinks does not lower sperm count, unless the person drinks more than 1 liter per day. At that level, there may be up to as much as a 30% reduction in sperm count.
Condoms do not lower sperm count.
The count is made if you have enough sperm to fertalise a women, sperm comes out with the semen.
No mustard will not lower sperm count at all.
You most certainly can, sperm count has nothing to do with it.
No, it is low sperm count
No. Viagra does not affect sperm count.
Lack of it reduces sperm count.
mumps will cause low sperm count
No, the only visibal symtom could be a smaller than usual ejaculation, but as sperm does not make up the majority of the ejaculation fluid you can not tell without doing a sperm count test with a doctor.