There is a logic as follows: 1*1*1*1 = One E 2*2*2*2 = Sixteen N 3*3*3*3= Eighty one E 4*4*4*4= Two hundred and fifty six X 5*5*5*5 =Six hundred and twenty five E The answer is E
1111=1*1*1*1=OnE 2222=2*2*2*2=SixteeN 3333=3*3*3*3=Eighty OnE 4444=4*4*4*4=Two Fifty Six
So 5555=5*5*5*5=Six Twenty FivE
Answer 5555=E
If 1111=FR, 2222=ET, 3333=TE, 4444=SN Then 6666=??