There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

In order to complete the racing competition, the Mexico racetrack has to submit its top and the most famous three horses to win the competition. Due to an electrical storm, all the records are cleared and no one knows which horse holds the record. They all look identical and it becomes even more difficult to differentiate the horses. There are 25 horses in the Mexico racetrack. But there can be only five horses at a time on the track. What will the least number of races that can be conducted to find out the three fastest horses?

A worker is to perform work for you for seven straight days. In return for his work, you will pay him 1/7th of a bar of gold per day. The worker requires a daily payment of 1/7th of the bar of gold. What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?

What can go up a chimney down, but can’t go down a chimney up?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

Sachin bought a car with a strange 5 digit numbered plate.The water image of the number is 78633 more than my car number. All the digits of car number are distinct.

What is the original number on number plate?

Can you find the key in the picture below?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?