Spot 5 differences in two Christmas tree below:

Prove that twice of ten is the same as twice of eleven.

What does below pictogram mean?

81 x 9 = 801. What must you do to make the this equation true?

In a university, a professor gave a set of three problems to the three brilliant students of his class. See the image for the questions.

There was a blind beggar living on the footpath of a street. Suddenly one day, the beggar's brother died. What was the relation of the blind beggar with the person who died?

PS: Brother is not the answer.

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

At a bar, three friends, Mr Green, Mr Red and Mr Blue, were having a drink. One man was wearing a red suit; one a green suit; and the other a blue suit. 'Have you noticed,' said the man in the blue suit, 'that although our suits have colours corresponding to our names, not one of us is wearing a suit that matches our own names?' Mr Red looked at the other two and said, 'You're absolutely correct. What colour suit is each man wearing?

What goes up but never comes down?

Complete the following series. It.s very logical:

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