Which Number is the odd one out?

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

When it is alive we sing, when it is dead we clap our hands. What is it?

A bus driver was heading down a street in Mexico. He went right past a stop sign without stopping, he turned left where there was a "no left turn" sign, and he went the wrong way on a one-way street. Then he went on the left side of the road past a cop car. Still - he didn't break any traffic laws. Why not?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

What does this mathematical rebus means ?

What time is it when an elephant sits on a fence?

I got a bee but no honey.
got an eye but am still blind.
got a sea but no water.
got a tea but no coffee.
got a why but no answer.

What Am I?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

I organized a small get together at my home.
In the party , i have a barrel with some whiskey in it.

Suddenly Guest 1 say 'I bet this barrel of whiskey is more than half full'.
'No, it's less than half full' Guest 2 replied.

I don't have any measuring instrument and without removing whiskey from it , how can i determine which of the guest is right ?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?