If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

When 99 is considered higher than 100?

Decode below three cipher riddles:

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

The Puzzle: Here is a famous prize problem that Sam Loyd issued in 1882, offering $1000 as a prize for the best answer showing how to arrange the seven figures and the eight 'dots' .4.5.6.7.8.9.0. which would add up to 82

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

Can you make a six-letter word using the letters N, A and B ?