There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

Which Number is the odd one out?

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

When it's bad luck to meet a black cat?

Can you find out the missing number in the grid?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Count the number of squares in the picture below.

Which of the below owl is odd one out?

I travel all around the world but always stay in the corner. What am I?

It belongs to you, but other people use it more than you do. What is it?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?