  We present results from several searches for various exotic physics phenomena
like large extra dimensions, leptoquarks, and dark matter, in proton-proton
collisions at $\sqrt{s}$ = 7 and 8 TeV delivered by the LHC and collected with
the CMS detector. Many different final states are analyzed using data collected
in 2011 and 2012 corresponding to an integrated luminosity up to 5.0 fb$^{-1}$
and 19.7 fb$^{-1}$. No sign of physics beyond the standard model has been
observed so far and the results are used to set new limits on various new
physics model parameters.
