Which Number is the odd one out?

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

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

John is looking at Jenifer, but Jenifer is looking at Jacob. John is married, but Jacob is not.

Is a married person looking at an unmarried person ?

What do you call a fish without an eye?

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

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

A Car is crossing a bridge 2 miles long. The bridge can only hold 10000 lbs, which is the exact weight of the car. The Car makes it half way across the bridge and stops. A bird lands on the car. Does the bridge collapse? Explain.

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?

I have 50 feet long of cloth, I need to create 50 handkerchiefs each size of 1 foot. I take one minute to cut a 1-foot handkerchief. So how long will it take to cut 50 handkerchiefs?

A man always keeps a spare tyre in his car. To make full use of all the five tyres, he changes the tyres in a manner that for a distance of 1, 00,000 km, each of them runs the same distance.

Can you calculate the distance travelled by each tyre on that journey?