What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

What has hands, but can’t clap?

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?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Spot the cat in the picture below

A man plots the murder of his wife. His plan is full proof. Nobody saw them leaving their house. He stabbed her with a knife while driving. She died on the spot. He threw her body in a valley. He threw the knife carefully wiping his finger prints on a random garbage bin. Then he went back to his home and no one was watching him this time as well.

After an hour, he was called by the local police department who informed him that his wife was murdered. They asked him to reach the scene of crime immediately. But as soon as he arrived at the crime scene, he was arrested by them.

How did the police know that he himself is the murderer?

An evil man kidnapped someone and made them take one of two pills. One was harmless, but the other was poisonous. Whichever pill the victim took, the kidnapper took the other one. The victim took their pill with water and died. The kidnapper survived. How did the kidnapper get the harmless pill?

A new clothing store has a unique method of pricing items. A vest costs $20, a tie costs $15, a blouse costs $30, and underwear costs $45. How much would pants cost?

What has 88 keys?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------