Which wheel of car does not rotate when you turn your car right?

Can you find the missing piece of the Porsche?

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

Which alphabet is a part of our body?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

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.

It belongs to you, but other people use it more than you do. What is it?