If 21x = 79x, what is the value of x?

Buy me, smell me or deliver me, I do not change.

Who am I?

What has lots of eyes, but can’t see?

Can you guess the name of the month by looking the below rebus ?

Two natural numbers have a sum of less than 100 and are greater than one.

John knows the product of the numbers and Jacob knows the sum of numbers.

The following conversation takes place between them:
John: 'I am not aware of those numbers.'
Jacob: 'I knew you wouldn't be. I am not aware myself.'
John: 'Now I know them!'
Jacob: 'Now I know them, too!'

What are the two numbers?

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?

Which tank will fill first?

In a rainy season, one day 3 huge ladies walked under a normal-sized umbrella.
The umbrella is not huge enough to accommodate all 3 ladies yet not a single lady got wet. Why?

Rearrange the letters in "new door" to make one word.

Can you fill the blank with the correct number?

6 30 870 756030 _____