Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

John was so frustrated to be the suspect of being a sleeper terrorist that he shoot himself right between the eyes with a revolver in his toilet. The revolver and the bullets were accurate. Minutes later John walks out of the toilet unharmed.
How can this be possible?

What word is represented by this rebus?

What kind of tree can you carry in your hand?

Replace the question mark with the correct number in the below-given picture?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

There is a basket full of hats. Three are white and two are black. Three men, Tom, Tim, and Jim, each take a hat out of the basket and put it on their heads without seeing the hat they selected or the hats the other men selected. The men arrange themselves so Tom can see Tim and Jim’s hats, Tim can see Jim’s hat, and Jim can’t see anyone’s hat. Tom is asked what color his hat is and he says he doesn’t know. Tim is asked the same question, and he also doesn’t know. Finally, Jim is asked the question, and he does know. What colour is his hat?

Complete the table series riddle by finding the number that can replace "??".

What country can make you shiver?

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