besides the blatently obvious questions which require no more than direct substitution into forumula, the only real tricks come when you have to find out the value for one variable using another equation in order to use one particular value.
Umm for example when you might have to find time by using
V = U + AT and letting V = 0 (as at max height there is no vertical velocity) and then having to multiply that by two fo find the total time (as of course the object must also fall to the ground).
You might have to find that value in order to use another equation for example you have have had to find the range and needed to find the time before calculating range using R = VT
Things like that, they are fairly straight forward, its just a matter of thinking outside the square when it comes to using equations.