Look at the picture and find out which square is not linked with any of the other squares.

In Greek mythology, the Sphinx sat outside of Thebes and asked this riddle of all travellers who passed by. If the traveller failed to solve the riddle, then the Sphinx killed him/her. And if the traveller answered the riddle correctly, then the Sphinx would destroy herself. The riddle:

What goes on four legs in the morning, on two legs at noon, and on three legs in the evening?

Oedipus solved the riddle, and the Sphinx destroyed herself.

Find the Odd One Out?
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Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?