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

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

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 ?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

After undergoing a successful eye operation, A blind girl has just boarded a train to her home. The doctor asked her to open the bandages after 3 hours. On her train journey, she opened the bandages and within a fraction of the time she commits suicide by jumping off the train.

Though her operation was successful, Why did she commit suicide?

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?