Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

I have two sand hourglasses:
1. A 7 minute one and
2. An 11-minute one.

Using just these 2 sand hourglasses, how can I measure time as 15 minutes?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

Two friends Smith and Andrew were talking about the bravery of their families. Smith told great stories about his courageous grandfather who fought for Britain in "World War I". Andrew told that his grandfather was so brave that in 1919 just after the war he was honoured with a bravery medal with the words "For our Courageous Soldiers In World War I" embedded into it. Smith knows that his friend is lying. How?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

The below mentioned letters have been placed in a order using a logic.

DEAD, BALL, FEAR, SHOP

Can you find the logic?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?