## Subtract 5 from 25

How many times can you subtract 5 from 25?
Just once, because after you subtract anything from it, it's not 25 anymore.
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## 5 = ?

If 1 = 5 , 2 = 25 , 3 = 325 , 4 = 4325 Then 5 = ?
1 Already stated 1=5 => 5=1
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## Equation riddle

If, Fernando + Alonso + McLaren = 6 Fernando x Alonso = 2 Alonso x McLaren = 6 Then, McLaren x Fernando = ?
3 or 0.75 Explanation: Rewriting the last 2 equations in terms of Alonso, Fernando = 2/Alonso McLaren = 6/Alonso Replacing above values in equation "Fernando + Alonso + McLaren = 6" 2/Alonso + Alonso + 6/Alonso =6 (2 + Alonso^2 + 6)/Alonso = 6 8 + Alonso^2 = 6Alonso Alonso^2 - 6Alonso + 8 = 0 (Alonso - 4) (Alonso - 2) = 0 Therefore; Alonso = 4 or 2 Let's take value of Alonso as 2 Fernando = 2/2 = 1 McLaren = 6/2 = 3 Therefore; McLaren x Fernando = 3 x 1 = 3 Let's take value of Alonso as 4 Fernando = 2/4 = 0.5 McLaren = 6/4 = 1.5 Therefore; McLaren x Fernando = 1.5 x 0.5 = 0.75
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## Maths trick riddle

I know a number which when multiplied by multiple of 9 i.e 9 18 27 36 45 ... The output consist of number containing only one digit. Can you identify the number?
12345679 12345679 × 9 = 111111111 (only 1s) 12345679 × 18 = 222222222 (only 2s) 12345679 × 27 = 333333333 (only 3s) 12345679 × 36 = 444444444 (only 4s) 12345679 × 45 = 555555555 (only 5s)
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## Prize of one million pounds

"Welcome back to the show. Before the break, Mr Ixolite here made it to our grand finale! How do you feel Mr.Ix?" "Nervous." "Okay, now to win the star prize of one million pounds all you have to do is answer the following question in 90 seconds." "Okay, I'm ready." "Right. In 90 seconds name 100 words that do NOT contain the letter 'A'. Start the clock!" Can you help?
One, two, three, four, five...one hundred! I just counted from 1 to 100 in ninety seconds (it is possible).
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## The missing dollar

Three people check into a hotel room. The bill is \$30 so they each pay \$10. After they go to the room, the hotel's cashier realizes that the bill should have only been \$25. So he gives \$5 to the bellhop and tells him to return the money to the guests. The bellhop notices that \$5 can't be split evenly between the three guests, so he keeps \$2 for himself and then gives the other \$3 to the guests. Now the guests, with their dollars back, have each paid \$9 for a total of \$27. And the bellhop has pocketed \$2. So there is \$27 + \$2 = \$29 accounted for. But the guests originally paid \$30. What happened to the other dollar?
This riddle is just an example of misdirection. It is actually nonsensical to add \$27 + \$2, because the \$27 that has been paid includes the \$2 the bellhop made. The correct math is to say that the guests paid \$27, and the bellhop took \$2, which, if given back to the guests, would bring them to their correct payment of \$27 - \$2 = \$25.
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## Three positive whole numbers

Find three positive whole numbers that have the same answer added together or when multiplied together.
1, 2 & 3. 1 x 2 x 3 = 6 and 1 + 2 + 3 = 6
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## 7+2+5 = ?

Assume: 5+3+2 = 151022 9+2+4 = 183652 8+6+3 = 482466 5+4+5 = 202541 Then; 7+2+5 = ?
143547 Explanations: Multiplication of the 1st & 2nd numbers, 5*3 = 15; 9*2 = 18…thusly, 7*2 = 14 Multiplication of the 1st & 3rd numbers, 5*2 = 10; 9*4 = 36…thusly, 7*5 = 35; Multiplication of the 1st & the sum of the 2nd & 3rd numbers. The generated result is reduced by the value of the 2nd number, …thusly, 7*(2+5) = 49 - 2 = 47
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## Four consecutive prime numbers

Can you find four consecutive prime numbers that add up to 220?
47 + 53 + 59 + 61 = 220
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