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?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

What has a bottom at the top?

Spot 5 differences in two Christmas tree below:

What word does this rebus represent?

meta meta
meta meta

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

What do you call a fish without an eye?

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

Before Balboa discovered the Pacific Ocean, which was the largest ocean before that?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?