This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

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?

Why do we preferably have round manhole covers and not square ones?

Can you count the number of triangles in the given picture?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

What runs around the whole yard without moving?

What common phrase is represented by the below lines

Easy going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Medium going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Tough going:
Weak, 'I can't do it, I'm staying!'
Tough, 'Let's get going.'

If two's company, and three's a crowd, then whats four and five ?

The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets?

Which digit occurred maximum times between the number 1 and 1000?