Which is faster, Heat or Cold ? Explain.

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

You need to remove two matchsticks to make the below equation true. Can you do it ?

Two boys were admitted to a school. When the headmaster asks them about their parents, they tell him that they have same parents (father and mother). On further inquiry, it turns out that they both share the same date for their birthday.

"Are you twins," ask the headmaster.
"No," replies the boys.

Is it possible?

Why do Chinese men eat more rice than Japanese men do ?

Can you solve the rebus below?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'