Spot 5 differences in two Christmas tree below:

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

Solve the equation in the image by looking at the pattern closely.

How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?

Replace the question mark with the correct number.

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

What am I?

Take one out and scratch my head, I am now black but once was red. What am I?