I have branches, but no fruit, trunk or leaves. What am I?

Move three sticks of the spiral below to form a square.

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.

There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?

Find the number of squares in the below picture

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

What does this mathematical rebus means ?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.