1)  how many dimples are on a standard golf ball?

worth 50 credits

250- 450 dimples.  Depends on brand name! 

A regulation golf ball weighs no more than 1.620 oz (45.93 grams), with a diameter over 1.680 in (42.67 mm), and is symmetrically spherical in shape and are subject to testing and approval by the Royal and Ancient Golf Club of St Andrews and the United States Golf Association, and those that do not conform with regulations may not be used in competitions

Most golf balls on sale today have about 250 – 450 dimples. There were a few balls having over 500 dimples before. The record holder was a ball with 1,070 dimples — 414 larger ones (in four different sizes) and 656 pinhead-sized ones. All brands of balls, except one, have even-numbered dimples. The only odd-numbered ball on the market is a ball with 333 dimples, called the Srixon AD333.

Officially sanctioned balls are designed to be as symmetrical as possible. This symmetry is the result of a dispute that stemmed from the Polara, a ball sold in the late 1970s that had six rows of normal dimples on its equator but very shallow dimples elsewhere. This asymmetrical design helped the ball self-adjust its spin-axis during the flight. The USGA refused to sanction it for tournament play and, in 1981, changed the rules to ban aerodynamic asymmetrical balls. Polara's producer sued the USGA and the association paid US$1.375 million in a 1985 out-of-court settlement.

Not to sure but standard number could be " 392  "!  What brand you looking at puzzykat?

on a topflite xl  there are 407!!  It differs by brand name.  Give me the brand name and I can give your number.  Just got to know where it is for their patent by the way.

i also have the number 336 dimples on a standard ball.  wasn't getting technical on this one or even brand specific.  good data cow!
highkicker was first response so here come those credits!