Three of the following four letter-clusters are alike in a certain way and one is different. Pick  the odd one out.

In the following question, select the odd number from the given alternatives.

‘Link’ is related to ‘Chain’ in the same way as ‘Bead’ is related to ‘____’.

Four number have been given out of which three are alike in some manner, while is different. Choose the odd one.

Four words have been given out of which three are alike in some manner, while one is different .Choose the odd one.

In each of the following questions, certain pairs of words are given, out of which the words in all pairs excepts one, bear a certain common relationship. Choose the pair in which the words are differently related?

Identify the odd pair from the following.

Select the related letters/word/number from the given alternative.
PEDAL : BICYCLE