You can see three almost identical images below. Can you spot the odd one out from them?

One day Jenifer meets the Lion and the Tiger in the Forest of Forgetfulness. She knows that the Lion lies on Mondays, Tuesdays, and Wednesdays, and tells the truth on the other days of the week. The Tiger, on the other hand, lies on Thursdays, Fridays, and Saturdays, but tells the truth on the other days of the week. Now they make the following statements to Jenifer:

Lion: Yesterday was one of my lying days.

Tiger: Yesterday was one of my lying days too.

What day is it?

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.

It can't be seen, can't be felt, can't be heard, and can't be smelt.
It lies behind stars and under hills, And empty holes it fills.
It comes first and follows after, Ends life, and kills laughter.
What is it?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Find the hidden panda in the image below.

How can a man go eight days without sleep?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

What can you hold in your right hand, but never in your left hand?