A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

There is a bag which have 21 blue balls and 23 red balls. You also have 22 red balls outside the bag. Randomly remove two balls from the bag. * If they are of different colors, put the blue one back in the bag. * If they are the same colour, take them out and put a red ball back in the bag. Repeat this until only one ball remains in the bag. What is the color of the sole ball left in the bag ?

People make me, save me, change me, raise me. What am I?

I shave every day, but my beard stays the same. What am I?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

I am sure no one can have two things for dinner. what are they?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

What jumps when it walks and sits when it stands?

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

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