The whole number 13 lies between 11 and 12.
Consider the whole number predecessor 0,
We know that, whole numbers are, 0,1,2,3,4,5,........∞
Hence, the whole number =13 lie between 12 and 14
So, 13 does not lie between 11 and 12;
13 is successor of 12 and predecessor of 14.
Hence, the given statement is False.