跪求五道数字推理题解题思路和答案
(1)2,3,28,65,( )
A.214 B.83 C.414 D.314
(2)2,15,7,40,77,( )
A.96 B.126 C.138 D.156
(3)56,79,129,202,( )
A.331 B.269 C.304 D.333
(4)3,2,53,32,( )
A.75 B.56 C.35 D.34
(5)16,17,18,20,( )
A.21 B.22 C.23 D.24
解题思路要详细些,我笨怕看不懂,