Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Can you solve the rebus below?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

A woman is sitting in her hotel room and hears a knock at the door. She opens the door to see a man whom she’s never met before. He says, “I’m sorry, I have made a mistake, I thought this was my room.” He then goes down the corridor and into the elevator. The woman goes back into her room and calls security. What made the woman so suspicious of the man?

Can you find the next number in the sequence?

113 119 101 114 116 ?

Which part of London exists in France as well ?

What question can you never answer yes to?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

After teaching his class all about Roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The teacher's only stipulation was that the pen could not be lifted from the paper until the line was complete.