Questions and Numericals on Gauss's Law

If the charge per init length λ on a wire is finite, and the wire is infinitely long , the total charge on the wire is infinite. Explain why this infinite charge does not give rise to an infinite electric field? A point charge is placed at one corner of a cube of edge ‘a’.What is the flux through each of the cube faces? 3)The electric field ‘E’ is everywhere parallel to the x-axis. The field has the same magnitude at all points in any given plane perpendicular to the x-axis(parallel to the yz- plane) , but the magnitude is different for various planes. That is , Ex depends on x but not on y and z and z, y –components of E are zero. E x =400 N/C. a) What is the value of flux over surface I in the diagram? B) What is the value of surface integral of E over surface II? C) there is positive charge of 26.6x10 ^-9 C within the volume. What is the magnitude and direction of E on the face opposite of I?