  We present results of a quenched QCD simulation with overlap fermions on a
lattice of volume V = 16^3X32 at beta=6.0, which corresponds approximatively to
a lattice cutoff of 2 GeV and an extension of 1.4 fm. From the two-point
correlation functions of bilinear operators we extract the pseudoscalar meson
masses and the corresponding decay constants. From the GMOR relation we
determine the chiral condensate and, by using the K-meson mass as experimental
input, we compute the sum of the strange and average up-down quark masses (m_s
+ \hat m). The needed logarithmic divergent renormalization constant Z_S is
computed with the RI/MOM non-perturbative renormalization technique. Since the
overlap preserves chiral symmetry at finite cutoff and volume, no divergent
quark mass and chiral condensate additive renormalizations are required and the
results are O(a) improved.
