A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

Can you count the number of blocks in the picture below?

What is the next number in this series?

4,12,84,3612....

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

The owner of a popular clothing store comes up with his own method of pricing items. A vest costs $8, socks cost $10, a tie costs $6, and a blouse costs $12. Using the owner’s method, how much would a pair of underwear cost?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

John is selling fruits.
He sells grapes at $30, Dates $25, and a Wolfberry $45.
At what price does he sell fig?

PS: Logical Thinking

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?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

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.