14: The DEA of the known angle OED is 93 degrees, and the OCB of the first question is 22 degrees. According to the fact that the circumferential angles of the same arc are equal, ADE is 22 degrees, and the angle DAE is 65 degrees.

16: OMN of 18 degrees can be obtained by knowing the angle NMA, connecting OA, OB, OC and OD. According to AB=CD, OA=OB=OC=OD, it can be concluded that all triangles o AB are equal to triangle OCD, and all are isosceles triangles, so OM=ON, so the angle Omn is equal to 18 degrees.