Who always enjoys poor health?

John went to meet his friend Jacob, but when he was about to reach the main gate, John notices that Jacob had a mighty dog who was fastened to the tree. The chain is long enough that it allows the dog to reach the main gate.

How can the John reach the main gate?

What breaks yet never falls, and what falls yet never breaks?

Count the Triangle in the figure given below:

Spot 5 differences in two Christmas tree below:

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

I am a five-letter word under you,
Remove the first letter and I am above you,
Remove the second as well and I am around you.

Who am I?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

What goes up but never comes down?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?