How many sides does a circle have?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

What kind of band never plays music?

In a basket of apples,
when counted in twos, there was one extra
when counted in threes, there were two extra when counted in fours, there were three extra
when counted in fives, there were four extra
when counted in sixes, there was five extra.

However, if the apples were counted in sevens, no extra apple was left. Can you calculate the minimum number of apples that were present in the basket?

What has many keys but can’t open a single lock?

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?