Decode this picture on T-Shirt and tell what it says ?

Why is a river so rich ?

John is pretty weird. He likes toffees but hates chocolates. He loves books but never reads. He likes to build his troops in an online game but does not proceed with the war. He likes to go swimming but is afraid of water.

Seeking this behaviour, can you tell whether he likes balloons and parties?

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.

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?

Solve the following series:
AZ, GT, MN, __, YB

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

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?

What makes this number unique: 8,549,176,320?