Brain Exercises – November 21

1. What mathematical symbol can be placed between 5 and 9 to get a number greater than 5 and smaller than 9?
2. If 6 puzzle solvers can solve 12 puzzles in 12 minutes, how long should it take a single puzzle solver to solve 60 puzzles?
3. There are 2 numbers that total 225 and have a ratio of 2 to 13. What are the numbers?
4. What is the number which is 5 more than one fifth of one tenth of one fourth of 1000?
5. Fill in the missing numbers in the following series:
101 99 102 98 103 97 ? ?
6. When asked how old he was, Bob replied, “In 2 years I will twice as old as I was five years ago.” How old is he?
7. If 5 cats can catch 5 mice in 5 minutes, how many cats do you need to catch 100 mice in 100 minutes?
8. If you have a cake, how many pieces of cake can you form with 3 straight cuts?
9. What number do you get when you multiple all the numbers on a telephone number pad?
10. Using only addition, how do you add eight 8s and get the number 1000?
1. Unscramble ETCH TWO TRIPES and find a three-word preposition.
2. Add one letter to ARISE and rearrange the rest to find a connection.
3. Fill in each missing letter indicated by an X to make a well-known proverb TXX MOXE TXX MEXXIEX
4. Delete one letter from BAIL and rearrange the rest to find a reason for release.
5. Change one letter in each of these two words to form a two-word phrase: GULL GOWN
6. What do the following words have in common? YARD WRECK MATES LOAD SHAPE OWNER WRIGHT
7. Unscramble A TIGHTER WORD and find a three-word preposition.
1. With respect to
2. Add S and find RAISES
3. The more the merrier
4. Delete T and find ALIBI
5. Dull down
6. Each can have the prefix SHIP- to form a new word
7. With regard to