We are pinning high hopes on LHC experiment. One of the expected results of the experiment is detection of Higgs Boson that would complete the standard model. In fact, discovery of Higgs Boson would complicate the theoretical issues because then we will need to find out.. a. origin of Higgs field. Higgs Boson has to be the first particle to be created almost simultaneously with big bang (Then only it can meet our theoretical requirements). b. Higgs mechanism suggests that particles have mass less existence before they interact with Higgs field. What are these particles? c. Why different particles have different masses and why interaction generates two different sets of particles (Quarks and Leptons)? d. Interaction between particles and Higgs field has to be the most fundamental interaction in nature. Standard Model is silent on the mechanism of this interaction.