It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

By moving just one matchstick, you need to make the below statement true. Can you do it?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

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

If a shopkeeper can only place the weights on one side of the common balance. For example, if he has weights 1 and 3 then he can measure 1, 3 and 4 only. Now the question is how many minimum weights and names of the weights you will need to measure all weights from 1 to 1000? This is a fairly simple problem and very easy to prove also.

The sum of a mother, her baby and her dog's weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

The LCD device should be able to tell the right time in the format HH:MM: SS in a 12-hour format. You can refer to the picture to get an idea. The device is a simple "level indicator" which has to be converted into a watch. How will you program it to work?