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

You see me once in June, twice in November, and not at all in May. What am I?

Three friends named Mr. Black, Mr. Yellow and Mr. Green enter a pub on a weekend night. They are wearing either a Black, Yellow or Green shirt.

Mr. Yellow says to them, 'Did you notice that we all are wearing different color shirts than our names?'

To this, the man who was wearing the Green shirt said. 'Wow, thats right.'

Can you identify who is wearing which colour shirt ?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

In the image below, can you find the value of an angle(y)

On a charity event in Russia, Murray beat Djokovic by winning six games and losing three games.
Note: There is a total of 5 service breaks(one who serve lost the game).
Who served first, Djokovic or Murray?

Can you solve below mathematical equation?

2^1234 - 2^1233

While going to your grandmother's house, you counted Twenty houses on the right side. While returning back to your home, you counted Twenty houses on the left side.

How many houses are there between your home and your grandmother's home?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?