What goes up but never comes down?

What is the centre of gravity?

What does this Rebus Picture means ?

what does this picture(rebus) riddle means ?

What happened when the wheel was invented?

I am 5 letters long.
My first two tell you who I am
My first 3 could be a medicine
My last three reversed could be a young boy.
My 4th, 3rd and 2nd in that order could be a fruit drink.
If you have me you may hang me round your neck
WHAT AM I ?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two.

Can you tell me how many flowers I have?