You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

All of Jacob's shoes are red except two.
All of Jacob's shoes are green except two.
All of Jacob's shoes are yellow except two.

How many shoes does Jacob have?

Which famous Hollywood movie name is hidden in the below rebus?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

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

John, a 5-year-old boy, was really fond of the chocolates. He asked his Mother to give him some money to buy his favourite chocolates. His Mother gave him $45. He went to the shopkeeper and asked, "How much is one chocolate for?". The shopkeeper said $3 for one chocolate. Also, if you give me the wrappers of three chocolates, I will give you one for the exchange.
In total, how much chocolate could John eat?

What am I?

Name a key which is hardest to turn.