Can you fill the blank with the correct number?

6 30 870 756030 _____

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

Which of the below owl is odd one out?

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

You can see it everyday, But cannot touch it at will. What is it?

What 5-letter word typed in all capital letters can be read the same upside down?

Suppose we lay down two cups in front of you. One of the cups is filled with tea and the other one with coffee. Now we ask you to take a spoonful of tea and mix it with the coffee. At this moment, the coffee cup has a mixture of tea and coffee. You have to take that mixture (spoonful) and add it back to the tea.

Can you now tell if the cup of coffee has more tea or the cup of tea has more coffee?

What does below pictogram mean?

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?