CrazyEngineers

Difficulty - Medium

Total Plays - 130

Allowed Time - 10 sec

Best time - 1.603

Identify the next number in the series -

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2 -> 3 -> 5 -> 7 -> 11 -> [ ? ]

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Explanation:
These are prime numbers. 13 is the next prime after 11.

Leaderboard
Difficulty - Medium

Total Plays - 132

Allowed Time - 10 sec

Best time - 0.632

If it takes 5 machines 5 minutes to make 5 widgets, how long would 100 machines take to make 100 widgets?

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Explanation:
Each machine makes 1 widget in 5 minutes. So 100 machines will make 100 widgets in 5 minutes, working in parallel.

Leaderboard
Difficulty - Medium

Total Plays - 124

Allowed Time - 10 sec

Best time - 0.582

What does a capacitor store?

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Explanation:
A capacitor stores energy in the form of an electric field between its plates. It doesn't store current or voltage directly.

Leaderboard
Difficulty - Hard

Total Plays - 116

Allowed Time - 15 sec

Best time - 0.515

What is the antonym of “Obscure”?

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Explanation:
"Obscure" means unclear or hidden. Its opposite is clear.

Leaderboard
Difficulty - Medium

Total Plays - 114

Allowed Time - 10 sec

Best time - 1.262

Choose the word that best fits the sentence:

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He is very good ___ playing chess.

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Explanation:
The correct preposition after "good" (when talking about skill) is "at".

Leaderboard
Difficulty - Medium

Total Plays - 108

Allowed Time - 10 sec

Best time - 0.887

Identify Next Number In the Series: 2, 6, 12, 20, 30, ?

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Explanation:
The pattern is +4, +6, +8, +10, +12... So, 30 + 12 = 42

Leaderboard
Difficulty - Medium

Total Plays - 95

Allowed Time - 10 sec

Best time - 1.610

Identify this commonly used engineering tool

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Explanation:
A claw hammer is used for driving nails into wood and removing them using the curved claw. It’s a common tool in carpentry and general household repairs.

Leaderboard
Difficulty - Medium

Total Plays - 96

Allowed Time - 10 sec

Best time - 1.562

Identify this famous logo of famous energy drink

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Explanation:
This is the logo of famous energy drink "Red Bull"

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Difficulty - Medium

Total Plays - 79

Allowed Time - 10 sec

Best time - 3.289

Choose the word most similar in meaning to: "Eloquent"

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Explanation:
“Eloquent” refers to clear, strong, and persuasive speech or writing.

Leaderboard
Difficulty - Medium

Total Plays - 73

Allowed Time - 10 sec

Best time - 2.642

What is the next number in the series?

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2 -> 4 -> 8 -> 16 -> ??

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Explanation:
Each number is multiplied by 2 to get the next number (2×2=4, 4×2=8, etc.).

Leaderboard
Difficulty - Hard

Total Plays - 87

Allowed Time - 15 sec

Best time - 1.597

A clock shows the time as 3:15. What is the angle between the hour and the minute hands?

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Explanation:
At 3:15, the minute hand is at 3 (i.e., 90°), and the hour hand is slightly ahead of 3. Every minute, the hour hand moves 0.5°, so in 15 minutes, it moves 7.5°. So, angle between them = 90° - 7.5° = 7.5°.

Leaderboard
Difficulty - Medium

Total Plays - 76

Allowed Time - 10 sec

Best time - 1.230

Engineers' Day in India is celebrated on September 15 to honor which famous Indian engineer?

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Explanation:
Mokshagundam Visvesvaraya was a legendary civil engineer and Bharat Ratna awardee. His birthday, September 15, is celebrated as Engineers' Day in India.

Leaderboard
Difficulty - Medium

Total Plays - 80

Allowed Time - 10 sec

Best time - 1.035

CrazyEngineers was founded in which year?

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Explanation:
CrazyEngineers was founded in 2005 to bring together engineers from around the world to share ideas, projects, and innovations.

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