What Adam and Eve do not have but the rest of the people have?

Forwards I am heavy, backward I am not. What am I?

If an electric train is travelling south, then which way is the smoke going?

During a secret mission, an agent gave the following code to the higher authorities
AIM DUE OAT TIE MOD

However, the information is in one word only and the rest are fake. To assist the authorities in understanding better, he also sent them a clue, If I tell you any one character of the code, you can easily find out the number of vowels in the codeword.

Can you find out the code word?

In the image below, can you find the value of an angle(y)

how come the second man dies?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

I know a nine-letter word having only one vowel.
Do you ?

Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.