There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

Why do we preferably have round manhole covers and not square ones?

500 women soldiers are arranged in an array of ten rows and fifty columns in accordance with their respective heights. Now, the tallest woman from each row is asked to move out in the front. From them, the shortest one is labelled as Alpha. They are then asked to resume their original position.

Now, the shortest woman in each column is asked to come out in front. The tallest among them is labelled as Beta.

Can you find out if Alpha will be taller or Beta?

How many letters are in the alphabet?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

What's a single-digit number with no value?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?

You are mixing a mixture of cement and Sand with five gallons of water. You have a garden hose giving you all the water you need. The problem is that you only have a four-gallon bucket and a seven-gallon bucket and neither has graduation marks. Find a method to measure five gallons.