In the four images below, can you find the odd one out?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

Two girls were born to the same mother, on the same day, at the same time, in the same month and year and yet they're not twins. How can this be ?

How many words can a pen with half refill write?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

You’re out on the water and see a boat filled with people. You look away for a second and look back again, but this time you don’t see a single person on the boat. Why? Hint: The boat did not sink.

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?