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

Whats the next number in the below number sequence pattern.

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Why Aeroplane windows are round?

The king of Octopuses has servants who have six, seven or eight legs. The distinguishing characteristics of the servants is that the one with seven legs always lie but the one with either six or eight legs speak the truth always.

One day, four servants meet and converse:

The black one says, 'We have 28 legs altogether.'

The green one says, 'We have 27 legs altogether.'

The yellow one says, 'We have 26 legs altogether.'

The red one says, 'We have 25 legs altogether.'


Can you identify the colour of the servant who is speaking the truth?

A mathematician couple was having a Frappuccino in Starbucks sitting opposite to each other. Suddenly the guy noticed the text written on the paper in front of them and exclaimed that it was wrong. The girl denied it and said it is appropriate. Both are correct. What is written on the paper?

You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

How is the moon similar to a dollar?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.