81 x 9 = 801. What must you do to make the this equation true?

John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the mixture is 20 pounds. After a while, John noticed that some of the liquid evaporated and now the liquid comprises just 50% of the weight.

What is the weight of the chemical mixture now?

What month of the year has 28 days?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag

Identify the hidden meaning behind this picture?

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

What word begins and ends with an E, but has only one letter?

I went to the bookshop and spent one-half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.

How many letters are in the alphabet?