Hard
Hard
Hard
Hard
Hard
100
What is the next number in this sequence: 1, 3, 6, 10, 15, 21, ___?
28
100
A rectangular block of ice with dimensions 2m x 3m x 4m is melting. At what rate is the surface area of the block decreasing when the length of the sides are 1m, 2m, and 3m, respectively?
0
100
What is the value of x in this equation: 3x - 7 = 2x + 11?
x = 18
100
A bus leaves from A and travels to B at 50mph. On the way back, it travels at 60mph. What is the average speed for the entire trip?
54mph
100
If a bat and a ball cost $1.10 together, and the bat costs $1.00 more than the ball, how much does the ball cost?
the ball must cost $0.05.
100
In a group of 100 people, 5% have red hair, 10% have green eyes, and 2% have both red hair and green eyes. How many people have neither red hair nor green eyes?
83
100
Which word in the English language is the longest when typed with only the left hand on a QWERTY keyboard?
"stewardesses"
100
If the word "NOON" is written vertically, with the N at the top and the O's underneath each other, what word is formed when the word is rotated 180 degrees?
NOON
100
What is the sum of the first 50 positive even numbers?
2550
100
Which number comes next in the series: 1, 4, 9, 16, __?
25
100
A store sells two types of items: apples for $1 each and oranges for $1.50 each. If a customer buys 12 items for a total of $16.50, how many of each type did they buy?
9 apples and 3 oranges
100
If you rearrange the letters of the word "RETIPE", what is the word spelled backward?
"EPITER"
100
If a clock loses 1 minute every hour, how many hours will it take before the clock is 2 hours behind the correct time?
120
100
A man rows a boat downstream for 5 miles at 5mph and then back upstream for 5 miles at 1mph. What is his average speed for the entire trip?
2.5mph
100
A farmer has 17 sheep and all but 9 die. How many sheep does the farmer have left?
9
100
A room contains a grandfather clock that chimes once every hour, and a cuckoo clock that chimes once every half-hour. At what time will both clocks chime at the same time?
12:30
100
Which of the following numbers is divisible by both 7 and 8: 324, 336, 342, 348?
336
100
In a certain code, "SPOT" is written as "TPNU". What is the code for "FISH"?
GJTI
100
40
100
In a certain code language, "RATE" is written as "6215" and "TIRE" is written as "9347". What number would "TART" correspond to?
Each letter in the word is assigned a number based on its position in the alphabet, so T=20, A=1, R=18, and T=20. These numbers are then combined to form the code
100
how many triangles are there
24
100
If a train leaves New York at 8am and travels west at 60mph, and another train leaves Los Angeles at 9am and travels east at 80mph, at what time will they be exactly 2,000 miles apart?
11am
100
If a cube with sides of length 4 units is sliced into cubes with sides of length 1 unit, how many cubes will there be?
64
100
Which of the following numbers is a prime number: 29, 49, 61, 77?
29 is a prime number
100
What is the missing number in the following sequence: 2, 5, 10, 17, 26, ___?
The sequence adds 3 to each previous number, so 2+3=5, 5+3=8, 8+3=11, 11+3=14, 14+3=17, 17+3=20, and so on