What has many keys but can’t open a single lock?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

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

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?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

There is a certain crime, that if it is attempted, is punishable, but if it is committed, is not punishable. What is the crime?

On a bright sunny day, two fathers took their son fishing in the lake. Each man and son were able to catch one fish. When they returned to their camp, there were only three fishes in the basket. What happened?

PS: None of the fish were eaten, lost, or thrown back.

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

Can you solve the maths in the below-given picture equation?

In the four images below, can you find the odd one out?