You'll lead yourself astray be looking for tricks and shortcuts that depend on pigeon-holing questions. The logic games appearing in a particular exam section vary considerably in difficulty level. More challenging games tend to appear later than easier ones, although you may find the second or third game to be more troublesome than the last game. It is safe to say, however, that the first game will not be your most difficult one. The amount of time that you should devote to a particular logic game depends upon several factors.
Some games are more complex than others and thus are inherently more time consuming.
If you're working very efficiently, you might be able to handle a simple game in as little as 5 or 6 minutes. However, most test-takers require at least 7 or 8 minutes for even the simplest of games. Complex games may realistically call for as much as a 10-minute investment of your time. A slow pace is generally inefficient, even for challenging games. Logic games are easier for some test-takers than for others.