Choose or find odd number - 325 , 236 , 178 , 639 , 538

B. 236

Choose or find odd number - 2345 , 3456 , 5467 , 5678

C. 5467

Choose or find odd number - 21, 36, 49, 56, 91

B. 36

Choose or find odd number - 372164 , 376821 , 318951 , 319446 , 387315

A. 372164

Choose or find odd number - 7851 , 6432 , 5789 , 1325 , 8167

B. 6432