What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

What word begins and ends with an E, but has only one letter?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

Can you count the number of triangles in the picture below?

Which holiday are we talking about?

Find the missing number in the image below.

Jigsaw captured 100 people and make them stand in a circle and all these people are labelled as Person1, Person2, Person3... Person100. He made them play a crazy game in which Person 1 shot Person 2 and pass the gun to the next person and so on until one stands alive.

Which person will survive in the end?

There is an exact a week gap between Christmas and New Year. Hence, It is obvious that the new year that comes right after Christmas comes on the same day of the week.

A Strange thing happened in the Year 1777. Christmas occurs on Wednesday and New Year on Monday. How is that possible?

Move four matchsticks to the below square to form three squares?

Name a key which is hardest to turn.