A maths symbol is hidden in the below Bar Graph. Can you decipher it?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

Can you solve this tricky maths equation problem by replacing it? mark with the correct symbol?

19834 -----: 187
15921 -----: 153
17561 -----: 139
13734 -----: ???

Rectify the following equality 101 - 102 = 1 by moving just one digit.

Can you Find and name the hidden bird in the picture below ?

What is harder to catch the faster you run?