Riddles & Brain Teasers

Crack Perplexing Numeric Conundrums

Ten brutal math riddles await sharp minds ready for 2026s toughest puzzles. Conquer logic and numbers alike.

#logic puzzles#hard riddles#trick math#math conundrums#calculation tests#elite enigmas#algebra challenges#2026 brain teasers#numeric teasers

Quiz Intelligence

Total Questions

Difficulty Level

hard

Progress

0/0

Quiz Questions

Answer all questions below and test your knowledge.

1
A bat and ball cost one dollar and ten cents together. The bat costs one dollar more than the ball. What is the cost of the ball?
Question 1
2
Pond lily pads double in area every day. The pond is fully covered in 30 days. On which day was it half covered?
Question 2
3
Three guests pay $30 for a room ($10 each). Manager refunds $5 via bellboy, who keeps $2 and returns $1 each. Each paid $9 ($27) + bellboy $2 = $29. Where is the missing dollar?
Question 3
4
Snail climbs 3 meters each day, slips 2 meters at night. 10-meter pole. On which day does it reach the top?
Question 4
5
Fathers age is five times sons now. In 5 years, four times. How old is son currently?
Question 5
6
Two numbers add to 10, multiply to 21. What are they?
Question 6
7
How many times do clock hour and minute hands overlap in 12 hours?
Question 7
8
Five machines make five widgets in five minutes. How long for 100 machines to make 100 widgets?
Question 8
9
Monty Hall: Pick one of three doors (one car). Host reveals goat behind another. Probability win by switching?
Question 9
10
Next in series: 1, 2, 4, 7, 11, 16?
Question 10

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Crack Perplexing Numeric Conundrums

Quiz Intelligence

Quiz Questions

A bat and ball cost one dollar and ten cents together. The bat costs one dollar more than the ball. What is the cost of the ball?

Pond lily pads double in area every day. The pond is fully covered in 30 days. On which day was it half covered?

Three guests pay $30 for a room ($10 each). Manager refunds $5 via bellboy, who keeps $2 and returns $1 each. Each paid $9 ($27) + bellboy $2 = $29. Where is the missing dollar?

Snail climbs 3 meters each day, slips 2 meters at night. 10-meter pole. On which day does it reach the top?

Fathers age is five times sons now. In 5 years, four times. How old is son currently?

Two numbers add to 10, multiply to 21. What are they?

How many times do clock hour and minute hands overlap in 12 hours?

Five machines make five widgets in five minutes. How long for 100 machines to make 100 widgets?

Monty Hall: Pick one of three doors (one car). Host reveals goat behind another. Probability win by switching?

Next in series: 1, 2, 4, 7, 11, 16?

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