There are three different types of intermolecular forces, dipole interaction, hydrogen bonding, and dispersion forces. The only one that occurs with Benzene is dispersion forces because it is a non-polar molecule. The other two forces only obtain to polar molecules. Dispersion forces are the weakest type of forces because there is rarely a time that the electrons around the nucleus are not symmetrical. The only time that dispersion forces take place is when one side of the molecule is slightly more negative or positive due to the electrons moving around in the electron cloud. Since Benzene is a bigger hydrocarbon molecule these forces are more likely to occur because there is a bigger area for the electrons to move. This does not mean that it occurs a lot just that it is more likely to occur than a smaller hydrocarbon molecule. 

The diagram above shows two different non-polar molecules. Between these two molecules, Benzene and Toluene, a liquid added to gasoline, there is only one intermolecular force. This force is the one described above, dispersion forces. This is the only force that is occurring because since both of these molecules are non-polar, there is only a small amount of time where both of these molecules have a positive and negative side. The only time that dispersion forces will occur between these two molecules is when one side of each molecule is more negative or positive. The opposites ends of these molecules will be attracted to each other for a split moment until one molecule evens out their charge.