What is always in front of you but can’t be seen?

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

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

Find the next number in the sequence

5 12 24 36 ?

Consider this: Arnold Schwarzenegger has a big one. Michael J. Fox has a small one. Prince doesn’t have one. The Pope has one but never uses it. Bill Clinton has one and uses it all the time. What is it?

What am I?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

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

What begins with T, ends with T, and has T in it?

What jumps when it walks and sits when it stands?