Solve the alphametic puzzle by replacing the alphabet with the number.

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I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not-rounded numerals equals 24.

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

What number comes next in the series?

5 15 5 18 5 24 14 20 _

Out of four images which one is the odd one out?

Replace the question mark with the correct number below.

If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?

On my way to St. Ives I saw a man with 7 wives. Each wife had 7 sacks. Each sack had 7 cats. Each cat had 7 kittens. Kittens, cats, sacks, wives. How many were going to St. Ives?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?