There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

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

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

what does this below rebus represent identXQQQQQME

There are five men, let's say Tarun Harish Lavesh, Manoj, and Manish. All of them have a dot mark on their forehead. They can't see the dots on their forehead but can see the ones on others. The owner of WHITE Dot is an honest person and will never lie, while the owner of BLACK Dot always tells the lie.

This is the statement from Tarun Harish Lavesh and Manish:
Tarun: 'I see 3 whites and 1 black'
Harish: 'I see 4 black'
Lavesh: 'I see 3 black and 1 white'
Manish: 'I see 4 white'

What colour is the dot on each of Tarun Harish Lavesh, Manoj, and Manish's forehead?

81 x 9 = 801. What must you do to make the this equation true?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

If 1+9+8=1, what is 2+8+9?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?