Can anyone tell me a word in the English dictionary which has a silent 'z'?

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

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

What English word has three consecutive double letters?

Can you find out who is the kidnapper in below Picture and why, Explain ?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

What jumps when it walks and sits when it stands?