There are forty elephants and they have forty-fore heads. How can this be possible?

You have $100 with you and you have to buy 100 balls with it. 100 is the exact figure and you can't go below or above the numbers and you have to use the entire $100. If there is no kind of tax applied how many of each of the following balls will you be able to buy:

Green Balls costing $6
Yellow Balls costing $3
Black Balls costing $0.10

Now, how many of each must you buy to fulfil the condition given?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

Where do fish keep their money?

Can you find the hidden animal in the picture below?

Can you solve the rebus below?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

If,

A = 1

B = 2

C = 3

...

...

Z = 26.

Based on above rule, you need to find an eleven letter word whose letter sum is equal to 52.

I am a prime number.
The double of myself is equal to the square of me.

which number am I?