Hard Riddles

Hard Math and Logic

25 horses, 5-horse races. Min races to find top 3?

Hard Math and Logic

Flip 4 coins. At least 2 are tails. Probability exactly 3 are tails?

Hard Math and Logic

Joey/Charlie share 50ml. Joey sips 1/2, Charlie 1/2 of rest, repeat...

Hard Math and Logic

Measure 9 mins using 4-min and 7-min hourglasses.

Hard Math and Logic

How many times in 24 hours do clock hands form a 90� angle?

Hard Math and Logic

Family has 2 kids, one is a boy. Probability the other is a girl?

Hard Math and Logic

100 people flip switches of multiples of their entry. How many stay on?

Hard Math and Logic

2 A and 2 B pills identical. Hand has 1A, 2B. How to get correct dose?

Hard Math and Logic

10x10x10 cube painted then cut into 1x1x1s. How many have no paint?

Hard Math and Logic

3-pointer (40% win) or 2-pointer (70% tie, then 50% OT win)?

Hard Dark/Thematic

Two men in a desert. One is dead (pack closed), one is alive (pack open).

Hard Wordplay

What is 73? chicken, 32? cat and 42? goat?

Hard Wordplay

What English word has three consecutive double letters?

Hard Lateral Thinking

A girl has as many brothers as sisters, but each brother has half as many brothers as sisters.

Hard Lateral Thinking

?Brothers and sisters I have none, but that man's father is my father's son.?

Hard Lateral Thinking

A woman shoots her husband, then holds him underwater... they enjoy a lovely dinner.

Hard Hard & Challenging

I turn once, what is out will not get in. I turn again, what is in will not get out.

Hard Animals

I have a hole in my back and legs I lack. I live where I can't breathe and I eat without teeth. What am I?

Hard Word

What does man love more than life, hate more than death or mortal strife; that which contented men desire; the...

Hard Word

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

Hard Funny

With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might;...

Hard Math

A man looks at a painting in a museum and says, "Brothers and sisters I have none, but that man's father is my...

Hard Word

The person who makes it has no need of it; the person who buys it has no use for it. The person who uses it ca...

Hard Kids

I am always hungry and will die if not fed, but whatever I touch will soon turn red. What am I?

Showing 529 to 552 of 569 results

25 horses, 5-horse races. Min races to find top 3?

Flip 4 coins. At least 2 are tails. Probability exactly 3 are tails?

Joey/Charlie share 50ml. Joey sips 1/2, Charlie 1/2 of rest, repeat...

Measure 9 mins using 4-min and 7-min hourglasses.

How many times in 24 hours do clock hands form a 90� angle?

Family has 2 kids, one is a boy. Probability the other is a girl?

100 people flip switches of multiples of their entry. How many stay on?

2 A and 2 B pills identical. Hand has 1A, 2B. How to get correct dose?

10x10x10 cube painted then cut into 1x1x1s. How many have no paint?

3-pointer (40% win) or 2-pointer (70% tie, then 50% OT win)?

Two men in a desert. One is dead (pack closed), one is alive (pack open).

What is 73? chicken, 32? cat and 42? goat?

What English word has three consecutive double letters?

A girl has as many brothers as sisters, but each brother has half as many brothers as sisters.

?Brothers and sisters I have none, but that man's father is my father's son.?

A woman shoots her husband, then holds him underwater... they enjoy a lovely dinner.

I turn once, what is out will not get in. I turn again, what is in will not get out.

I have a hole in my back and legs I lack. I live where I can't breathe and I eat without teeth. What am I?

What does man love more than life, hate more than death or mortal strife; that which contented men desire; the...

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might;...

A man looks at a painting in a museum and says, "Brothers and sisters I have none, but that man's father is my...

The person who makes it has no need of it; the person who buys it has no use for it. The person who uses it ca...

I am always hungry and will die if not fed, but whatever I touch will soon turn red. What am I?

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