Which is Odd One Out and why?

4377

3954

9862

8454

9831

I am lying and I always lie. Tell me whether I am lying or telling the truth.

Which number should replace the question mark?

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

Solve the puzzle by telling what does below picture means.

Can you find out the remainder when 3^300 is divided by 5?

In The 1st month of this year(the year 2013), I noticed that the date 13-1-13 (13 January 2013) is special.

This date is special as:

Date * Month = Year.

Can you figure out which year of this century has a maximum number of such dates?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

A man dies of old age on his 25 birthday. How is this possible?