Which Number is the odd one out?

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

What number do you get when you multiply all of the numbers on a telephone's number pad?

I have feet, but no legs. Which animal Am I?

What does this Rebus Picture means ?

A man looks at a painting in a museum and says, “Brothers and sisters I have none, but that man’s father is my father’s son.” Who is in the painting?

What am I?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

A family is trapped in a jungle. There is a bridge which can lead them to safety. But at one time, the bridge can only allow two people to pass through. Also, all of them are afraid of the dark and thus, they can't go alone.

Father takes 1 minute to cross, the mother takes 2 minutes, the son takes 4 and the daughter takes 5 minutes. While crossing the time taken will be according to the slower one. How can they all reach the other side in the minimum possible time?

Which is heavier: a ton of bricks or a ton of feathers?

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.