You know three triplets: Frank John and Wayne (need to return your money). Frank always tells the truth while John and Wayne always lie. You meet one of them on the road and can ask him a three-word question.
Which question, will you ask?

During which month do people sleep the least?

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

Do You See It?

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?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?